Rust Monument Puzzles — Step-by-Step Keycard Guides

easy puzzles3

Sewer Branch

green card

Time3-5 minutesLootmediumItemsGreen Keycard, Electric Fuse x1, Flashlight or Torch

1
Find the above-ground entrance to the sewer system.
The sewer entrance is a concrete opening in the ground, usually near a small above-ground building. Look for the metal grate covering.
2
Descend into the sewer tunnels using the ladder.
Drop down the ladder into the underground tunnel system. It is dark inside so have a flashlight ready.
Danger · Fall damage if you miss the ladder. The tunnels are very dark.
3
Navigate through the tunnels to find the fuse box.
Follow the main tunnel corridor. The fuse box is mounted on the wall near the locked door. Insert your Electric Fuse into the fuse box.
4
Locate the Green Card reader on the locked door.
The green card reader is right next to the fuse box area. Swipe your Green Keycard to open the door.
5
Enter the loot room and collect your rewards.
Inside you will find a Military Crate and potentially Normal Crates. Loot everything quickly as other players may be nearby.
6
Exit through the same tunnel or find the secondary exit.
You can backtrack the way you came or look for a secondary tunnel exit that leads to a different surface location.

Loot rooms

Green Card Room (green card) — 1 Military Crate, 1-2 Normal Crates with components, scrap, and potential weapon drops.
Tunnel Loot — 3-4 Normal Crates and barrels scattered through the tunnel system. Often contain Green Keycards and Fuses.

Tip · Sewer Branch is the best place to learn the card puzzle system.

Satellite Dish Array

green card

Time2-4 minutesLootmediumItemsGreen Keycard, Electric Fuse x1

1
Approach the satellite dish installation and locate the main building.
The main building is the small concrete structure near the base of the large dish. The fuse box is on the exterior wall.
2
Insert an Electric Fuse into the fuse box on the outside of the building.
The fuse box is on the wall facing the dish. Insert your fuse to power the card reader.
3
Use the Green Keycard on the card reader next to the locked door.
Swipe your card and the door will open on a 30-second timer. Enter quickly.
4
Loot the Military Crate inside the room.
The room contains a Military Crate which can drop mid-tier weapons, components, and potentially Blue Keycards.
5
Collect any additional loot from crates and barrels around the monument.
Check the small equipment shelters around the dish for Normal Crates and barrels.
6
Use the recycler in the nearby building if needed.
The recycler is in one of the small buildings near the dish. Process any unwanted components into raw materials.

Loot rooms

Green Card Room (green card) — 1 Military Crate with mid-tier weapons, components, and potential Blue Keycard drops.

Tip · Very simple puzzle — good for beginners.

Harbor

green card

Time3-5 minutesLootmediumItemsGreen Keycard, Electric Fuse x1

1
Enter the harbor area and locate the warehouse building with the puzzle.
The puzzle building is typically the largest warehouse structure. Look for the fuse box on the exterior wall near a locked metal door.
2
Insert an Electric Fuse into the fuse box.
The fuse box is mounted on the exterior wall. Insert your fuse to power the Green Card reader.
3
Use the Green Keycard on the card reader.
Swipe your Green Keycard at the reader next to the locked door. The door opens on a 30-second timer.
4
Enter the room and loot the crates.
Inside you will find Normal Crates and potentially a Military Crate with components, scrap, and possible weapon drops.
5
Check shipping containers for additional loot.
Many shipping containers around the harbor have crate and barrel spawns inside them. Check each one for bonus loot.
6
Check the docks for boat spawns.
Boats frequently spawn at the harbor docks. Grab one if you need ocean transportation for Oil Rig or Cargo Ship runs.

Loot rooms

Green Card Warehouse (green card) — 2-3 Normal Crates and potentially 1 Military Crate with tools, clothing, components, and scrap.
Shipping Containers — Multiple Normal Crates and barrels scattered in shipping containers throughout the harbor.

Tip · The harbor comes in two sizes — the large harbor has more loot.

medium puzzles5

Water Treatment Plant

green cardblue card

Time5-8 minutesLoothighItemsGreen Keycard, Blue Keycard, Electric Fuse x1

1
Enter the Water Treatment Plant and locate the pump station building.
The pump station is a smaller building on the eastern side of the monument. It has the fuse box on its exterior wall.
2
Insert an Electric Fuse into the fuse box on the pump station.
The fuse box is on the exterior wall. Insert your fuse to power both the Green and Blue card readers.
3
Use the Green Keycard at the pump station door.
Swipe your Green Keycard at the reader on the pump station door. The door opens on a 30-second timer. Enter and loot the crates inside.
Danger · Other players may be watching from the elevated positions around the monument.
4
Proceed to the main water treatment building.
The main building is the large structure with water tanks. The Blue Card reader is on a door on the upper level.
5
Climb to the upper level of the main building.
Use the staircases inside the building to reach the upper floor where the Blue Card door is located.
Danger · Open layout means you are visible from many angles during the climb.
6
Use the Blue Keycard at the upper level door.
Swipe your Blue Keycard at the reader. The door opens on a 30-second timer.
7
Loot the Military Crate room.
Inside the Blue Card room you will find Military Crates with mid-to-high tier weapons, components, and valuable items.
8
Exit carefully and use the recycler.
The recycler is in one of the smaller buildings. Recycle unwanted items before leaving the monument.

Loot rooms

Green Card Room (Pump Station) (green card) — 1-2 Normal Crates with components, scrap, and tools.
Blue Card Room (Main Building) (blue card) — 2 Military Crates with Thompson, Custom SMG, Python Revolver, Rifle Body, SMG Body, and other mid-tier drops.

Tip · No radiation protection needed — rare for a tier 2 monument.

Airfield

green cardblue card

Time6-10 minutesLoothighItemsGreen Keycard, Blue Keycard, Electric Fuse x1, 10+ Radiation Protection

1
Approach the airfield and locate Hangar 1 (the first hangar from the runway side).
The airfield has multiple hangars along the runway. Hangar 1 is the first large building. The fuse box is on the exterior wall.
2
Insert an Electric Fuse into the fuse box on the exterior of Hangar 1.
Find the fuse box on the wall and insert your fuse. This powers the Green Card reader inside the hangar.
3
Enter Hangar 1 and use the Green Keycard at the locked door.
Inside the hangar, find the Green Card reader on a locked metal door. Swipe your card and enter the room.
Danger · Radiation is present inside some hangars. Ensure you have 10+ rad protection.
4
Loot the Green Card room and collect any items.
The Green Card room contains Normal Crates with components and scrap. Loot everything before moving to the next step.
5
Navigate to Hangar 2 and find the Blue Card reader.
Hangar 2 is adjacent to Hangar 1. The Blue Card reader is on the upper floor, accessible via internal stairs.
6
Climb to the upper floor of Hangar 2.
Use the internal staircase to reach the upper floor. The Blue Card door is at the top of the stairs.
Danger · Radiation can be strong on the upper floors. Monitor your rad level.
7
Use the Blue Keycard at the upper floor door.
Swipe your Blue Keycard to open the Military Crate room. Enter quickly as the door timer is 30 seconds.
8
Loot the Military Crate room.
Inside you will find Military Crates with mid-to-high tier weapons including Thompson, Custom SMG, and Rifle Bodies.
9
Check the runway area for additional barrel and crate spawns.
The runway and surrounding area have many barrel spawns and occasional crate spawns that players often overlook.
10
Use the recycler in the hangar before leaving.
The recycler is inside one of the hangars. Process unwanted components for raw materials.

Loot rooms

Hangar 1 Green Card Room (green card) — 2-3 Normal Crates with components, scrap, clothing, and tools.
Hangar 2 Blue Card Room (blue card) — 2-3 Military Crates with Thompson, Custom SMG, Python Revolver, Rifle Body, SMG Body, and other mid-tier drops.
Runway and Perimeter — 8+ Normal Crates and 20+ barrels with components, scrap, and crude oil.

Tip · No scientists but radiation is present in some buildings.

Train Yard

green cardblue card

Time5-8 minutesLoothighItemsGreen Keycard, Blue Keycard, Electric Fuse x1

1
Enter the Train Yard and locate the warehouse building near the train tracks.
The warehouse is one of the main buildings in the yard. Look for the fuse box on its exterior wall.
2
Insert an Electric Fuse into the fuse box.
The fuse box is on the exterior wall of the warehouse. Insert your fuse to power the card readers.
3
Use the Green Keycard at the warehouse door.
Swipe your Green Keycard at the reader on the locked door. Enter the room and loot the crates inside.
4
Navigate to the large tower building.
The tower is the tallest structure in the Train Yard. The Blue Card reader is at the top.
5
Climb the tower using the internal staircase.
Use the stairs inside the tower to reach the upper floors. Check for loot on intermediate floors as you ascend.
6
Use the Blue Keycard at the top floor door.
At the top of the tower, swipe your Blue Keycard to access the Military Crate room.
7
Loot the Military Crate room at the tower top.
The room contains Military Crates with mid-tier weapon drops, components, and crafting materials.
8
Descend and loot the scattered train cars.
Train cars around the yard contain Normal Crates and barrels. Check each one as you exit the monument.

Loot rooms

Warehouse Green Card Room (green card) — 1-2 Normal Crates with components and scrap.
Tower Blue Card Room (blue card) — 2 Military Crates with Thompson, Custom SMG, Rifle Body, Python Revolver, and other mid-tier drops.
Train Cars — 4-6 Normal Crates and barrels scattered in train cars around the yard.

Tip · No radiation or scientists — purely a card puzzle monument.

Military Tunnels

green cardblue card

Time8-12 minutesLooteliteItemsGreen Keycard, Blue Keycard, Electric Fuse x1, 10+ Radiation Protection, Flashlight, Close-range weapons, Medical Syringes (5+)

1
Approach Military Tunnels and locate the side entrance.
The side entrance is a smaller opening away from the main entrance. The fuse box is near this side entrance on the exterior wall.
2
Insert an Electric Fuse into the fuse box.
The fuse box powers both the Green and Blue card readers inside the tunnels.
3
Enter through the side entrance and clear the initial scientists.
Scientists patrol near the entrance. Use shotguns or SMGs in the tight corridors. Clear them before proceeding.
Danger · Scientists hit hard in close quarters. Use cover and peak shots. They have 150 HP each.
4
Use the Green Keycard at the first locked door.
The Green Card reader is on the first security door inside the tunnel. Swipe your card and enter the first section.
5
Navigate deeper into the tunnels, clearing scientists as you go.
The tunnels branch in multiple directions. Follow the main corridor toward the armory section. Scientists patrol at intersections.
Danger · Multiple scientists can ambush you at tunnel junctions. Listen for footstep audio cues.
6
Loot Normal and Military Crates along the tunnel walls.
Crates are placed at various points along the tunnel walls. Grab everything as you progress deeper.
7
Use the Blue Keycard at the armory room door.
The Blue Card door is deep inside the tunnel system. Swipe your Blue Keycard to access the armory — the main prize.
8
Loot the Elite Crates in the armory room.
The armory contains 2 Elite Crates with top-tier weapon drops including AK-47, LR-300, Bolt Action, and Metal Armor.
Danger · Scientists may respawn behind you while looting. Stay alert.
9
Exit through the secondary tunnel exit.
There is a secondary exit that avoids backtracking through the entire tunnel system. Look for the exit signs.

Loot rooms

Green Card Section (green card) — 2-3 Normal Crates and 1 Military Crate with components, mid-tier weapons, and scrap.
Blue Card Armory (blue card) — 2 Elite Crates with Assault Rifle, LR-300, Bolt Action Rifle, Metal Facemask, Metal Chestplate, and other high-tier drops.
Tunnel Crates — 6+ Normal Crates scattered throughout the tunnel system.

Tip · Bring a flashlight — the tunnels are extremely dark and disorienting.

Power Plant

green cardblue card

Time6-10 minutesLoothighItemsGreen Keycard, Blue Keycard, Electric Fuse x1, 15+ Radiation Protection

1
Approach the Power Plant and locate the auxiliary building near the cooling towers.
The auxiliary building is a smaller structure near the large concrete cooling towers. The fuse box is on its exterior wall.
2
Insert an Electric Fuse into the fuse box.
The fuse box powers both card readers. Insert your fuse before attempting either puzzle door.
3
Use the Green Keycard at the auxiliary building door.
Swipe your Green Keycard to enter the first puzzle room. Loot the crates inside.
Danger · Radiation begins in this area. Monitor your rad level.
4
Proceed to the main power plant building.
The main building is the largest industrial structure. Enter through the ground floor entrance.
Danger · Radiation is stronger inside the main building. 15+ rad protection is recommended.
5
Navigate to the upper floor of the main building.
Use the internal staircases and catwalks to reach the upper floor. The Blue Card reader is on a door at the top.
6
Use the Blue Keycard at the upper floor door.
Swipe your Blue Keycard to access the main loot room with Military Crates.
7
Loot the Military Crates in the upper floor room.
Military Crates contain mid-tier weapons, Rifle Bodies, SMG Bodies, and other valuable components.
8
Exit and use the recycler outside the radiation zone.
The recycler is positioned outside the main radiation zone for safe scrapping.

Loot rooms

Auxiliary Green Card Room (green card) — 1-2 Normal Crates with components and scrap.
Main Building Blue Card Room (blue card) — 2 Military Crates with Thompson, Custom SMG, Rifle Body, SMG Body, and other mid-tier drops.
Perimeter Loot — 5+ Normal Crates and 15+ barrels around the Power Plant perimeter.

Tip · Radiation is present in the main building — Hazmat Suit recommended.

hard puzzles3

Launch Site

green cardblue cardred card

Time15-25 minutesLooteliteItemsGreen Keycard, Blue Keycard, Red Keycard, Electric Fuse x1, 25+ Radiation Protection (Hazmat Suit recommended), Weapons and ammo for Bradley APC and scientists, Medical Syringes (10+), Bandages

1
Approach Launch Site from the outer wall flank route to avoid Bradley APC.
The Bradley APC patrols the main road and open areas. Use the outer wall route to approach the office building without being detected by Bradley.
Danger · Bradley APC will fire rockets and machine guns if you are spotted. It has significant range.
2
Clear any scientists near the office building entrance.
Scientists patrol around the office building. Eliminate them before starting the puzzle. They have 250 HP and hit hard.
Danger · Heavy scientists deal significant damage. Use cover and peek shots.
3
Locate the fuse box on the exterior of the office building and insert an Electric Fuse.
The fuse box is on the ground floor exterior wall. Insert your fuse to power all three card readers.
4
Use the Green Keycard at the ground floor office building door.
Swipe your Green Keycard at the reader on the ground floor. Enter the room and loot any crates. The door timer is 30 seconds.
5
Navigate through the Green Card room to find the Blue Card reader.
Inside the Green Card area, proceed through the corridors to find the Blue Card reader deeper inside the building.
Danger · Scientists may be waiting inside. Clear each room carefully.
6
Use the Blue Keycard at the next puzzle door.
Swipe your Blue Keycard to access the next section. Loot Military Crates along the way.
7
Navigate to the Red Card reader in the final secured area.
Continue through the building following the corridor to the final puzzle door with the Red Card reader.
Danger · Radiation increases as you go deeper. Monitor your rad level.
8
Use the Red Keycard at the final puzzle door.
Swipe your Red Keycard to access the Elite Crate room. This is the main prize of the Launch Site puzzle.
9
Loot the Elite Crate in the Red Card room.
The Elite Crate can drop Assault Rifles, LR-300s, M249s, Bolt Actions, C4, and other top-tier items.
10
Optionally, climb to the roof for an additional Elite Crate.
The roof of the main building has an Elite Crate accessible without puzzle cards. Climb the exterior scaffolding to reach it.
Danger · Falling from the roof means death. The climb is exposed to snipers.
11
Optionally, engage Bradley APC for additional loot.
Destroying Bradley requires 7 HV Rockets or 2 C4 charges. It drops 2 locked crates that take 15 minutes each to unlock.
Danger · Bradley fires rockets and machine guns. Use cover extensively.
12
Extract with your loot using the flank route.
Exit the monument using the same outer wall route to avoid Bradley. Have a vehicle ready for fast extraction.

Loot rooms

Green Card Room (green card) — 1-2 Normal Crates with components and scrap.
Blue Card Room (blue card) — 2-3 Military Crates with mid-tier weapons, Rifle Bodies, and SMG Bodies.
Red Card Room (red card) — 1-2 Elite Crates with Assault Rifle, LR-300, M249, Bolt Action, Armored Door, C4, and other top-tier drops.
Roof Elite Crate — 1 Elite Crate accessible via exterior scaffolding climb. No cards required.
Bradley APC Drop — 2 Locked Crates with Assault Rifle, LR-300, M249, Explosives, and high-value items. 15-minute unlock timer each.

Tip · The outer wall flank route avoids Bradley entirely on approach.

Arctic Research Base

green cardblue cardred card

Time12-20 minutesLooteliteItemsGreen Keycard, Blue Keycard, Red Keycard, Electric Fuse x1, Cold protection clothing (Arctic Suit or layered clothing), Weapons for heavy scientists, Medical Syringes (10+)

1
Prepare cold protection gear before approaching.
The Arctic Research Base is in the arctic biome. Without cold protection you will freeze to death. Arctic Suit or heavy clothing layers are mandatory.
Danger · Extreme cold drains health rapidly. You can die in minutes without protection.
2
Approach the research base and clear exterior scientists.
Heavy scientists patrol the exterior grounds. Eliminate them before entering the buildings. They have 250 HP.
Danger · Heavy scientists deal high damage and have good accuracy. Use cover.
3
Locate the fuse box on the exterior side building.
The fuse box is on the outside wall of the side building. Insert your fuse to power all card readers.
4
Use the Green Keycard at the side building entrance.
Swipe your Green Keycard to enter the initial lab area. Loot any crates inside.
5
Clear scientists inside the lab corridors.
Scientists patrol the interior corridors. Clear them methodically room by room.
Danger · Indoor combat with heavy scientists. Bring close-to-mid range weapons.
6
Navigate through the lab to the Blue Card reader.
Follow the corridors from the Green Card area to find the Blue Card reader on the next security door.
7
Use the Blue Keycard to enter the inner research wing.
Swipe your Blue Keycard and enter the inner wing. Military Crates are available in this section.
8
Continue to the Red Card reader at the final secure lab.
Navigate deeper into the research base to find the Red Card security door.
9
Use the Red Keycard to access the Elite Crate room.
Swipe your Red Keycard to access the final room with Elite Crates containing top-tier loot.
10
Loot the Elite Crates and extract safely.
Grab everything from the Elite Crates and retrace your steps out. Watch for scientist respawns on the way out.
Danger · Scientists may have respawned in earlier corridors during your run.

Loot rooms

Green Card Lab Area (green card) — 1-2 Normal Crates and 1 Military Crate with components and mid-tier drops.
Blue Card Research Wing (blue card) — 2-3 Military Crates with Thompson, Custom SMG, Rifle Body, and SMG Body.
Red Card Secure Lab (red card) — 2 Elite Crates with Assault Rifle, LR-300, Bolt Action Rifle, Metal Armor, and other top-tier drops.

Tip · Cold protection is THE most important preparation for this monument.

Underwater Lab (Large)

green cardblue cardred card

Time15-25 minutesLooteliteItemsGreen Keycard, Blue Keycard, Red Keycard, Electric Fuse x1, Submarine or Diving Gear (fins, tank, wetsuit), Weapons for scientists, Medical Syringes (5+)

1
Acquire a submarine or diving gear from a Fishing Village.
You need either a submarine (200 scrap for solo, 300 scrap for duo) or diving gear to access the underwater lab. Submarines are strongly recommended.
2
Locate the underwater lab on the map and descend.
Underwater labs appear as icons on the map. Pilot your submarine down to the lab. The moonpool entrance glows with a blue light.
3
Enter through the moonpool or submarine dock.
The moonpool is a flooded entry point you can swim up through. The submarine dock allows you to park your sub and walk in.
Danger · If swimming, you need enough oxygen to make it from the surface to the moonpool.
4
Locate the fuse box and insert an Electric Fuse.
The fuse box is near the first security door inside the lab. Insert your fuse to power the card readers.
5
Use the Green Keycard at the first locked module.
Swipe your Green Keycard to access the first loot section of the lab. Clear scientists as you go.
Danger · Scientists patrol the corridors. Close-quarters combat is common.
6
Navigate through the lab modules, mapping the layout.
Labs are procedurally generated so the layout is different on every server. Navigate module by module, checking each room for loot.
7
Use the Blue Keycard at the research wing door.
Find the Blue Card reader deeper in the lab. Swipe to access the research wing with Military Crates.
8
Clear scientists and loot the research wing.
Military Crates in the research wing contain mid-to-high tier weapons and components.
Danger · Scientists can appear from connecting corridors. Check your flanks.
9
Locate and use the Red Keycard at the secure laboratory module.
The Red Card door is in the deepest section of the lab. Swipe your Red Keycard to access Elite Crates.
10
Loot the Elite Crates in the secure laboratory.
Elite Crates contain Assault Rifles, LR-300s, Bolt Actions, Metal Armor, and other high-value items.
11
Retrace your path back to your submarine or the moonpool.
Navigate back through the modules to your entry point. Watch for scientist respawns along the way.
12
Ascend to the surface with your loot.
Pilot your submarine back to the surface. If swimming, ensure you have enough oxygen for the ascent.
Danger · Other players may be waiting at the surface near your submarine.

Loot rooms

Green Card Module (green card) — 1-2 Normal Crates with components and scrap.
Blue Card Research Wing (blue card) — 3-4 Military Crates with Thompson, Custom SMG, Rifle Body, SMG Body, and other mid-tier drops.
Red Card Secure Lab (red card) — 2 Elite Crates with Assault Rifle, LR-300, Bolt Action Rifle, Metal Armor, and other top-tier drops.
Corridor Loot — 6+ Normal Crates scattered throughout connecting corridors and modules.

Tip · Submarines are strongly recommended over diving gear for safety and convenience.

Frequently asked questions

What do you need for Rust monument puzzles?

Most puzzles need one or more keycards (green, blue, or red) plus electric fuses to power doors. Higher-tier monuments need higher-tier cards — you often swipe a lower card to reach a room where a higher card spawns. A flashlight helps in dark sections.

Which Rust monument has the best loot?

Launch Site has the highest-tier loot (elite crates and a red card room), but it is the hardest and most dangerous puzzle. Military Tunnels and the Underwater Labs are also elite-loot puzzles. Easier monuments like Sewer Branch and the Satellite Dish give medium loot.

easy puzzles3

Sewer Branch

green card

Time3-5 minutesLootmediumItemsGreen Keycard, Electric Fuse x1, Flashlight or Torch

1
Find the above-ground entrance to the sewer system.
The sewer entrance is a concrete opening in the ground, usually near a small above-ground building. Look for the metal grate covering.
2
Descend into the sewer tunnels using the ladder.
Drop down the ladder into the underground tunnel system. It is dark inside so have a flashlight ready.
Danger · Fall damage if you miss the ladder. The tunnels are very dark.
3
Navigate through the tunnels to find the fuse box.
Follow the main tunnel corridor. The fuse box is mounted on the wall near the locked door. Insert your Electric Fuse into the fuse box.
4
Locate the Green Card reader on the locked door.
The green card reader is right next to the fuse box area. Swipe your Green Keycard to open the door.
5
Enter the loot room and collect your rewards.
Inside you will find a Military Crate and potentially Normal Crates. Loot everything quickly as other players may be nearby.
6
Exit through the same tunnel or find the secondary exit.
You can backtrack the way you came or look for a secondary tunnel exit that leads to a different surface location.

Loot rooms

Green Card Room (green card) — 1 Military Crate, 1-2 Normal Crates with components, scrap, and potential weapon drops.
Tunnel Loot — 3-4 Normal Crates and barrels scattered through the tunnel system. Often contain Green Keycards and Fuses.

Tip · Sewer Branch is the best place to learn the card puzzle system.

Satellite Dish Array

green card

Time2-4 minutesLootmediumItemsGreen Keycard, Electric Fuse x1

1
Approach the satellite dish installation and locate the main building.
The main building is the small concrete structure near the base of the large dish. The fuse box is on the exterior wall.
2
Insert an Electric Fuse into the fuse box on the outside of the building.
The fuse box is on the wall facing the dish. Insert your fuse to power the card reader.
3
Use the Green Keycard on the card reader next to the locked door.
Swipe your card and the door will open on a 30-second timer. Enter quickly.
4
Loot the Military Crate inside the room.
The room contains a Military Crate which can drop mid-tier weapons, components, and potentially Blue Keycards.
5
Collect any additional loot from crates and barrels around the monument.
Check the small equipment shelters around the dish for Normal Crates and barrels.
6
Use the recycler in the nearby building if needed.
The recycler is in one of the small buildings near the dish. Process any unwanted components into raw materials.

Loot rooms

Green Card Room (green card) — 1 Military Crate with mid-tier weapons, components, and potential Blue Keycard drops.

Tip · Very simple puzzle — good for beginners.

Harbor

green card

Time3-5 minutesLootmediumItemsGreen Keycard, Electric Fuse x1

1
Enter the harbor area and locate the warehouse building with the puzzle.
The puzzle building is typically the largest warehouse structure. Look for the fuse box on the exterior wall near a locked metal door.
2
Insert an Electric Fuse into the fuse box.
The fuse box is mounted on the exterior wall. Insert your fuse to power the Green Card reader.
3
Use the Green Keycard on the card reader.
Swipe your Green Keycard at the reader next to the locked door. The door opens on a 30-second timer.
4
Enter the room and loot the crates.
Inside you will find Normal Crates and potentially a Military Crate with components, scrap, and possible weapon drops.
5
Check shipping containers for additional loot.
Many shipping containers around the harbor have crate and barrel spawns inside them. Check each one for bonus loot.
6
Check the docks for boat spawns.
Boats frequently spawn at the harbor docks. Grab one if you need ocean transportation for Oil Rig or Cargo Ship runs.

Loot rooms

Green Card Warehouse (green card) — 2-3 Normal Crates and potentially 1 Military Crate with tools, clothing, components, and scrap.
Shipping Containers — Multiple Normal Crates and barrels scattered in shipping containers throughout the harbor.

Tip · The harbor comes in two sizes — the large harbor has more loot.

medium puzzles5

Water Treatment Plant

green cardblue card

Time5-8 minutesLoothighItemsGreen Keycard, Blue Keycard, Electric Fuse x1

1
Enter the Water Treatment Plant and locate the pump station building.
The pump station is a smaller building on the eastern side of the monument. It has the fuse box on its exterior wall.
2
Insert an Electric Fuse into the fuse box on the pump station.
The fuse box is on the exterior wall. Insert your fuse to power both the Green and Blue card readers.
3
Use the Green Keycard at the pump station door.
Swipe your Green Keycard at the reader on the pump station door. The door opens on a 30-second timer. Enter and loot the crates inside.
Danger · Other players may be watching from the elevated positions around the monument.
4
Proceed to the main water treatment building.
The main building is the large structure with water tanks. The Blue Card reader is on a door on the upper level.
5
Climb to the upper level of the main building.
Use the staircases inside the building to reach the upper floor where the Blue Card door is located.
Danger · Open layout means you are visible from many angles during the climb.
6
Use the Blue Keycard at the upper level door.
Swipe your Blue Keycard at the reader. The door opens on a 30-second timer.
7
Loot the Military Crate room.
Inside the Blue Card room you will find Military Crates with mid-to-high tier weapons, components, and valuable items.
8
Exit carefully and use the recycler.
The recycler is in one of the smaller buildings. Recycle unwanted items before leaving the monument.

Loot rooms

Green Card Room (Pump Station) (green card) — 1-2 Normal Crates with components, scrap, and tools.
Blue Card Room (Main Building) (blue card) — 2 Military Crates with Thompson, Custom SMG, Python Revolver, Rifle Body, SMG Body, and other mid-tier drops.

Tip · No radiation protection needed — rare for a tier 2 monument.

Airfield

green cardblue card

Time6-10 minutesLoothighItemsGreen Keycard, Blue Keycard, Electric Fuse x1, 10+ Radiation Protection

1
Approach the airfield and locate Hangar 1 (the first hangar from the runway side).
The airfield has multiple hangars along the runway. Hangar 1 is the first large building. The fuse box is on the exterior wall.
2
Insert an Electric Fuse into the fuse box on the exterior of Hangar 1.
Find the fuse box on the wall and insert your fuse. This powers the Green Card reader inside the hangar.
3
Enter Hangar 1 and use the Green Keycard at the locked door.
Inside the hangar, find the Green Card reader on a locked metal door. Swipe your card and enter the room.
Danger · Radiation is present inside some hangars. Ensure you have 10+ rad protection.
4
Loot the Green Card room and collect any items.
The Green Card room contains Normal Crates with components and scrap. Loot everything before moving to the next step.
5
Navigate to Hangar 2 and find the Blue Card reader.
Hangar 2 is adjacent to Hangar 1. The Blue Card reader is on the upper floor, accessible via internal stairs.
6
Climb to the upper floor of Hangar 2.
Use the internal staircase to reach the upper floor. The Blue Card door is at the top of the stairs.
Danger · Radiation can be strong on the upper floors. Monitor your rad level.
7
Use the Blue Keycard at the upper floor door.
Swipe your Blue Keycard to open the Military Crate room. Enter quickly as the door timer is 30 seconds.
8
Loot the Military Crate room.
Inside you will find Military Crates with mid-to-high tier weapons including Thompson, Custom SMG, and Rifle Bodies.
9
Check the runway area for additional barrel and crate spawns.
The runway and surrounding area have many barrel spawns and occasional crate spawns that players often overlook.
10
Use the recycler in the hangar before leaving.
The recycler is inside one of the hangars. Process unwanted components for raw materials.

Loot rooms

Hangar 1 Green Card Room (green card) — 2-3 Normal Crates with components, scrap, clothing, and tools.
Hangar 2 Blue Card Room (blue card) — 2-3 Military Crates with Thompson, Custom SMG, Python Revolver, Rifle Body, SMG Body, and other mid-tier drops.
Runway and Perimeter — 8+ Normal Crates and 20+ barrels with components, scrap, and crude oil.

Tip · No scientists but radiation is present in some buildings.

Train Yard

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Time5-8 minutesLoothighItemsGreen Keycard, Blue Keycard, Electric Fuse x1

1
Enter the Train Yard and locate the warehouse building near the train tracks.
The warehouse is one of the main buildings in the yard. Look for the fuse box on its exterior wall.
2
Insert an Electric Fuse into the fuse box.
The fuse box is on the exterior wall of the warehouse. Insert your fuse to power the card readers.
3
Use the Green Keycard at the warehouse door.
Swipe your Green Keycard at the reader on the locked door. Enter the room and loot the crates inside.
4
Navigate to the large tower building.
The tower is the tallest structure in the Train Yard. The Blue Card reader is at the top.
5
Climb the tower using the internal staircase.
Use the stairs inside the tower to reach the upper floors. Check for loot on intermediate floors as you ascend.
6
Use the Blue Keycard at the top floor door.
At the top of the tower, swipe your Blue Keycard to access the Military Crate room.
7
Loot the Military Crate room at the tower top.
The room contains Military Crates with mid-tier weapon drops, components, and crafting materials.
8
Descend and loot the scattered train cars.
Train cars around the yard contain Normal Crates and barrels. Check each one as you exit the monument.

Loot rooms

Warehouse Green Card Room (green card) — 1-2 Normal Crates with components and scrap.
Tower Blue Card Room (blue card) — 2 Military Crates with Thompson, Custom SMG, Rifle Body, Python Revolver, and other mid-tier drops.
Train Cars — 4-6 Normal Crates and barrels scattered in train cars around the yard.

Tip · No radiation or scientists — purely a card puzzle monument.

Military Tunnels

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Time8-12 minutesLooteliteItemsGreen Keycard, Blue Keycard, Electric Fuse x1, 10+ Radiation Protection, Flashlight, Close-range weapons, Medical Syringes (5+)

1
Approach Military Tunnels and locate the side entrance.
The side entrance is a smaller opening away from the main entrance. The fuse box is near this side entrance on the exterior wall.
2
Insert an Electric Fuse into the fuse box.
The fuse box powers both the Green and Blue card readers inside the tunnels.
3
Enter through the side entrance and clear the initial scientists.
Scientists patrol near the entrance. Use shotguns or SMGs in the tight corridors. Clear them before proceeding.
Danger · Scientists hit hard in close quarters. Use cover and peak shots. They have 150 HP each.
4
Use the Green Keycard at the first locked door.
The Green Card reader is on the first security door inside the tunnel. Swipe your card and enter the first section.
5
Navigate deeper into the tunnels, clearing scientists as you go.
The tunnels branch in multiple directions. Follow the main corridor toward the armory section. Scientists patrol at intersections.
Danger · Multiple scientists can ambush you at tunnel junctions. Listen for footstep audio cues.
6
Loot Normal and Military Crates along the tunnel walls.
Crates are placed at various points along the tunnel walls. Grab everything as you progress deeper.
7
Use the Blue Keycard at the armory room door.
The Blue Card door is deep inside the tunnel system. Swipe your Blue Keycard to access the armory — the main prize.
8
Loot the Elite Crates in the armory room.
The armory contains 2 Elite Crates with top-tier weapon drops including AK-47, LR-300, Bolt Action, and Metal Armor.
Danger · Scientists may respawn behind you while looting. Stay alert.
9
Exit through the secondary tunnel exit.
There is a secondary exit that avoids backtracking through the entire tunnel system. Look for the exit signs.

Loot rooms

Green Card Section (green card) — 2-3 Normal Crates and 1 Military Crate with components, mid-tier weapons, and scrap.
Blue Card Armory (blue card) — 2 Elite Crates with Assault Rifle, LR-300, Bolt Action Rifle, Metal Facemask, Metal Chestplate, and other high-tier drops.
Tunnel Crates — 6+ Normal Crates scattered throughout the tunnel system.

Tip · Bring a flashlight — the tunnels are extremely dark and disorienting.

Power Plant

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Time6-10 minutesLoothighItemsGreen Keycard, Blue Keycard, Electric Fuse x1, 15+ Radiation Protection

1
Approach the Power Plant and locate the auxiliary building near the cooling towers.
The auxiliary building is a smaller structure near the large concrete cooling towers. The fuse box is on its exterior wall.
2
Insert an Electric Fuse into the fuse box.
The fuse box powers both card readers. Insert your fuse before attempting either puzzle door.
3
Use the Green Keycard at the auxiliary building door.
Swipe your Green Keycard to enter the first puzzle room. Loot the crates inside.
Danger · Radiation begins in this area. Monitor your rad level.
4
Proceed to the main power plant building.
The main building is the largest industrial structure. Enter through the ground floor entrance.
Danger · Radiation is stronger inside the main building. 15+ rad protection is recommended.
5
Navigate to the upper floor of the main building.
Use the internal staircases and catwalks to reach the upper floor. The Blue Card reader is on a door at the top.
6
Use the Blue Keycard at the upper floor door.
Swipe your Blue Keycard to access the main loot room with Military Crates.
7
Loot the Military Crates in the upper floor room.
Military Crates contain mid-tier weapons, Rifle Bodies, SMG Bodies, and other valuable components.
8
Exit and use the recycler outside the radiation zone.
The recycler is positioned outside the main radiation zone for safe scrapping.

Loot rooms

Auxiliary Green Card Room (green card) — 1-2 Normal Crates with components and scrap.
Main Building Blue Card Room (blue card) — 2 Military Crates with Thompson, Custom SMG, Rifle Body, SMG Body, and other mid-tier drops.
Perimeter Loot — 5+ Normal Crates and 15+ barrels around the Power Plant perimeter.

Tip · Radiation is present in the main building — Hazmat Suit recommended.

hard puzzles3

Launch Site

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1
Approach Launch Site from the outer wall flank route to avoid Bradley APC.
The Bradley APC patrols the main road and open areas. Use the outer wall route to approach the office building without being detected by Bradley.
Danger · Bradley APC will fire rockets and machine guns if you are spotted. It has significant range.
2
Clear any scientists near the office building entrance.
Scientists patrol around the office building. Eliminate them before starting the puzzle. They have 250 HP and hit hard.
Danger · Heavy scientists deal significant damage. Use cover and peek shots.
3
Locate the fuse box on the exterior of the office building and insert an Electric Fuse.
The fuse box is on the ground floor exterior wall. Insert your fuse to power all three card readers.
4
Use the Green Keycard at the ground floor office building door.
Swipe your Green Keycard at the reader on the ground floor. Enter the room and loot any crates. The door timer is 30 seconds.
5
Navigate through the Green Card room to find the Blue Card reader.
Inside the Green Card area, proceed through the corridors to find the Blue Card reader deeper inside the building.
Danger · Scientists may be waiting inside. Clear each room carefully.
6
Use the Blue Keycard at the next puzzle door.
Swipe your Blue Keycard to access the next section. Loot Military Crates along the way.
7
Navigate to the Red Card reader in the final secured area.
Continue through the building following the corridor to the final puzzle door with the Red Card reader.
Danger · Radiation increases as you go deeper. Monitor your rad level.
8
Use the Red Keycard at the final puzzle door.
Swipe your Red Keycard to access the Elite Crate room. This is the main prize of the Launch Site puzzle.
9
Loot the Elite Crate in the Red Card room.
The Elite Crate can drop Assault Rifles, LR-300s, M249s, Bolt Actions, C4, and other top-tier items.
10
Optionally, climb to the roof for an additional Elite Crate.
The roof of the main building has an Elite Crate accessible without puzzle cards. Climb the exterior scaffolding to reach it.
Danger · Falling from the roof means death. The climb is exposed to snipers.
11
Optionally, engage Bradley APC for additional loot.
Destroying Bradley requires 7 HV Rockets or 2 C4 charges. It drops 2 locked crates that take 15 minutes each to unlock.
Danger · Bradley fires rockets and machine guns. Use cover extensively.
12
Extract with your loot using the flank route.
Exit the monument using the same outer wall route to avoid Bradley. Have a vehicle ready for fast extraction.

Loot rooms

Green Card Room (green card) — 1-2 Normal Crates with components and scrap.
Blue Card Room (blue card) — 2-3 Military Crates with mid-tier weapons, Rifle Bodies, and SMG Bodies.
Red Card Room (red card) — 1-2 Elite Crates with Assault Rifle, LR-300, M249, Bolt Action, Armored Door, C4, and other top-tier drops.
Roof Elite Crate — 1 Elite Crate accessible via exterior scaffolding climb. No cards required.
Bradley APC Drop — 2 Locked Crates with Assault Rifle, LR-300, M249, Explosives, and high-value items. 15-minute unlock timer each.

Tip · The outer wall flank route avoids Bradley entirely on approach.

Arctic Research Base

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1
Prepare cold protection gear before approaching.
The Arctic Research Base is in the arctic biome. Without cold protection you will freeze to death. Arctic Suit or heavy clothing layers are mandatory.
Danger · Extreme cold drains health rapidly. You can die in minutes without protection.
2
Approach the research base and clear exterior scientists.
Heavy scientists patrol the exterior grounds. Eliminate them before entering the buildings. They have 250 HP.
Danger · Heavy scientists deal high damage and have good accuracy. Use cover.
3
Locate the fuse box on the exterior side building.
The fuse box is on the outside wall of the side building. Insert your fuse to power all card readers.
4
Use the Green Keycard at the side building entrance.
Swipe your Green Keycard to enter the initial lab area. Loot any crates inside.
5
Clear scientists inside the lab corridors.
Scientists patrol the interior corridors. Clear them methodically room by room.
Danger · Indoor combat with heavy scientists. Bring close-to-mid range weapons.
6
Navigate through the lab to the Blue Card reader.
Follow the corridors from the Green Card area to find the Blue Card reader on the next security door.
7
Use the Blue Keycard to enter the inner research wing.
Swipe your Blue Keycard and enter the inner wing. Military Crates are available in this section.
8
Continue to the Red Card reader at the final secure lab.
Navigate deeper into the research base to find the Red Card security door.
9
Use the Red Keycard to access the Elite Crate room.
Swipe your Red Keycard to access the final room with Elite Crates containing top-tier loot.
10
Loot the Elite Crates and extract safely.
Grab everything from the Elite Crates and retrace your steps out. Watch for scientist respawns on the way out.
Danger · Scientists may have respawned in earlier corridors during your run.

Loot rooms

Green Card Lab Area (green card) — 1-2 Normal Crates and 1 Military Crate with components and mid-tier drops.
Blue Card Research Wing (blue card) — 2-3 Military Crates with Thompson, Custom SMG, Rifle Body, and SMG Body.
Red Card Secure Lab (red card) — 2 Elite Crates with Assault Rifle, LR-300, Bolt Action Rifle, Metal Armor, and other top-tier drops.

Tip · Cold protection is THE most important preparation for this monument.

Underwater Lab (Large)

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Time15-25 minutesLooteliteItemsGreen Keycard, Blue Keycard, Red Keycard, Electric Fuse x1, Submarine or Diving Gear (fins, tank, wetsuit), Weapons for scientists, Medical Syringes (5+)

1
Acquire a submarine or diving gear from a Fishing Village.
You need either a submarine (200 scrap for solo, 300 scrap for duo) or diving gear to access the underwater lab. Submarines are strongly recommended.
2
Locate the underwater lab on the map and descend.
Underwater labs appear as icons on the map. Pilot your submarine down to the lab. The moonpool entrance glows with a blue light.
3
Enter through the moonpool or submarine dock.
The moonpool is a flooded entry point you can swim up through. The submarine dock allows you to park your sub and walk in.
Danger · If swimming, you need enough oxygen to make it from the surface to the moonpool.
4
Locate the fuse box and insert an Electric Fuse.
The fuse box is near the first security door inside the lab. Insert your fuse to power the card readers.
5
Use the Green Keycard at the first locked module.
Swipe your Green Keycard to access the first loot section of the lab. Clear scientists as you go.
Danger · Scientists patrol the corridors. Close-quarters combat is common.
6
Navigate through the lab modules, mapping the layout.
Labs are procedurally generated so the layout is different on every server. Navigate module by module, checking each room for loot.
7
Use the Blue Keycard at the research wing door.
Find the Blue Card reader deeper in the lab. Swipe to access the research wing with Military Crates.
8
Clear scientists and loot the research wing.
Military Crates in the research wing contain mid-to-high tier weapons and components.
Danger · Scientists can appear from connecting corridors. Check your flanks.
9
Locate and use the Red Keycard at the secure laboratory module.
The Red Card door is in the deepest section of the lab. Swipe your Red Keycard to access Elite Crates.
10
Loot the Elite Crates in the secure laboratory.
Elite Crates contain Assault Rifles, LR-300s, Bolt Actions, Metal Armor, and other high-value items.
11
Retrace your path back to your submarine or the moonpool.
Navigate back through the modules to your entry point. Watch for scientist respawns along the way.
12
Ascend to the surface with your loot.
Pilot your submarine back to the surface. If swimming, ensure you have enough oxygen for the ascent.
Danger · Other players may be waiting at the surface near your submarine.

Loot rooms

Green Card Module (green card) — 1-2 Normal Crates with components and scrap.
Blue Card Research Wing (blue card) — 3-4 Military Crates with Thompson, Custom SMG, Rifle Body, SMG Body, and other mid-tier drops.
Red Card Secure Lab (red card) — 2 Elite Crates with Assault Rifle, LR-300, Bolt Action Rifle, Metal Armor, and other top-tier drops.
Corridor Loot — 6+ Normal Crates scattered throughout connecting corridors and modules.

Tip · Submarines are strongly recommended over diving gear for safety and convenience.

Frequently asked questions

What do you need for Rust monument puzzles?

Which Rust monument has the best loot?