Train Yard

Nine crates and a red keycard for one blue card and a fuse — the best value run in the blue tier.

At a glance

Puzzle: Blue keycard
Cards needed
Fuses: 1
Rad protection: 25 rad protection
Recycler: Yes, on-site
Puzzle reward: Red keycard + 9 crates

Run the Train Yard puzzle → step-by-step · 5–8 min

Train Yard offers the blue tier’s best exchange rate: no green card strictly required, one fuse, and nine crates plus a red keycard behind the final door.

Why you’re here

Nine crates. No other blue puzzle room comes close, and the red keycard rides along. The route is roof-hopping rather than tunnel-crawling — two switches on two levels of one building, then the fuse next door.

The layout

A rail depot: locomotives and tank cars between warehouses, with the three-story office building holding the first half of the circuit and its neighbor the second. Radiation around the hot spots wants ~25 protection. The recycler and the rail network connection make Train Yard a strong farm stop even without cards.

Route and circuit: Train Yard puzzle guide.

Loot worth the trip

Red keycard in the blue puzzle room
9 crates (wood/military) behind the blue door — the biggest blue-tier room
Rail access and fuel/loot scatter across the yard