Rust Blue Keycard
The mid-tier card — usually sitting behind a green-card door.
Where to get it
Blue keycards are found inside the room a green card unlocks. Swipe a green card at a monument's green puzzle and there's typically a blue card waiting inside — so you spend a green to earn a blue.
Where to use it (11)
These monuments' puzzles need a blue keycard — swipe it at the card reader to open the door.
Next in the chain
Inside the room this card opens you'll usually find the next card up. Red Keycard →
Frequently Asked Questions
Where do you get a Blue Keycard in Rust?expand_more
Blue keycards are found inside the room a green card unlocks. Swipe a green card at a monument's green puzzle and there's typically a blue card waiting inside — so you spend a green to earn a blue.
Which monuments need a Blue Keycard?expand_more
11 monuments use the blue keycard: Launch Site, Military Tunnels, Airfield, Power Plant, Water Treatment Plant, Train Yard, Large Oil Rig, Small Oil Rig, Missile Silo, Ferry Terminal and Radtown. Swipe it at that monument's card reader to open the puzzle door.
Can you craft or buy a Blue Keycard?expand_more
No — keycards can't be crafted, and the safe-zone shops don't sell them. The only way to get a blue keycard is to loot one: it's waiting inside the room the previous card unlocks.
Are Rust keycards single-use?expand_more
Yes — a keycard is consumed the moment you swipe it at the reader, so you need a fresh one for each run. Grab spares if you plan to chain several monuments in one trip.
What keycard comes after the Blue Keycard?expand_more
The Red Keycard. Red keycards sit behind a blue-card door, almost always at the larger monuments. You spend a blue card to reach the room that holds a red one, then use the red for the final loot room.
Related guides
A Rust monument tier list ranked from beginner-safe to end-game: radiation levels, keycard puzzles, recyclers, and the gear you need for each.
New to Rust? Here's exactly what to do on your first wipe — gathering, your first base, tools, scrap and staying alive. Real numbers, no fluff.