Another Oct 2025 addition. The puzzle rooms now spawn military crates, which is a step up for a green-card run — but the radiation is real here, unlike the other green puzzles.
| Keycards | Green |
| Fuses | 1 electric fuse — looted only, bring a spare |
| Radiation | Variable — hot spots reach ~26, so bring real rad protection (around 25) for the irradiated sections. |
Insert your fuse into the puzzle-room fuse box.
Flip the power switch to start the timer.
Swipe your Green keycard at the door.
Loot the puzzle room.
📷 Screenshots coming for these spots:
Keycard-door loot respawns every 30 minutes — far faster than open crates, so a puzzle you can reach is renewable income.
One down — here's the rest of the ladder.