White Key
White Key only matters when your run can still turn Segen into a Fort Istria finish instead of dying one step before Black Key.
Black Key is only worth carrying when your run is already strong enough to turn Fort Istria into a Dreadnought vault finish.
Black Key only pays off as a finish line item, not as generic loot. It opens the black vault inside the Dreadnought, so the real question is not whether the key looks rare. The real question is whether your crew can clear Fort Istria, survive the trip, and still bank the vault. If that answer is shaky, Black Key is dead weight.
Reach the white-locked door at Fort Istria and pull Black Key from that step of the route. Its only real use is the black vault inside the Dreadnought (Bismarck).
White Key only matters when your run can still turn Segen into a Fort Istria finish instead of dying one step before Black Key.
Fort Istria is a fixed fort worth routing for Black Key progression and guaranteed NZ Mk2 Energy Rods at each extraction exit.
Dreadnought is the end of the colored-key chain, a late high-tier payoff stop where Black Key turns into the black vault run.
Dreadnought Key is a separate Storm Dive endgame key, so it only matters when your run can still survive the ship and the extraction after it.
Blue Key only pays off when your Kaiserplatz stop was clean enough to justify pushing the chain one landmark deeper.
Dreadnought Key is a separate Storm Dive endgame key, so it only matters when your run can still survive the ship and the extraction after it.
Green Key only matters when you are ready to turn a safe drop into the first real landmark step of the colored chain.
Keys are route commitments, because each useful key only pays off if the crew can still reach its exact box, door, fort, or vault before the run collapses.
Red Key only deserves space when your run is still strong enough to keep climbing toward White Key instead of extracting profit now.
White Key only matters when your run can still turn Segen into a Fort Istria finish instead of dying one step before Black Key.
Black Key is where the colored route finally stops being chain progress and starts being a single, expensive payout decision.
Skip it when fuel, repairs, or crew control are already slipping. A late key does not matter if the Trampler never leaves the ship lane alive.
Black Key opens the black vault inside the Dreadnought (Bismarck).
Black Key sits behind a white-locked door at Fort Istria.