SpawnPass · Rust
Airfield puzzle
Two fuses, a green door and a blue door — most of it underground, in the dark, under the runway.
Last checked 2026-09-21
Overview
Airfield is a two-fuse puzzle and the only one where most of the route is in an unlit tunnel. Bring a light source, and bring both fuses before you start — walking back out to farm a second one hands the monument to whoever heard you.
Power the first fuse box
Start at the main office building by the runway, go in through the garage-style entry and find the small corner room. Insert the first fuse and flip the switch — this starts the timer.
Insert the first fuse — 120 seconds
The fuse box is in the corner room off the garage, with a timer beside it. Insert the first Electric Fuse and flip the timer: it powers all four green doors in the tunnel for 120 seconds.
Get underground between the hangars
Run to the tunnel entrance between the hangars — the one with the brick fence and pipework beside it. Go down with a light on.
Swipe green in the tunnel
Follow the tunnel to the green doors — the tunnel has four of them, all side rooms. Swipe, clear the scientist inside and take the side crates.
Second fuse, then swipe blue
The second fuse box — the armory’s — sits right beside the blue door. It is the only thing powering the blue reader: insert the second Electric Fuse, then swipe blue. Expect several scientists behind it, with the red keycard and blueprint fragments among the military crates.
Leave by a different exit
The tunnel has more than one way up. Coming out where you went in is how ambushes work at Airfield — surface on the far side and cross the runway only if it is clear.