Green Key
Green Key only matters when you are ready to turn a safe drop into the first real landmark step of the colored chain.
Kaiserplatz is the landmark that turns a loose Green Key into Blue Key progress, so it only pays when your run can survive the whole key chain.
Kaiserplatz is where the colored-key route starts feeling expensive. This landmark is the Green Key step that leads to Blue Key, usually by pushing players into the large top-side mansion or main building instead of casual side loot. That makes Kaiserplatz a commitment check: if your crew is already low on repairs, meds, or room to carry forward, this is often where the chain should stop.
Kaiserplatz is a fixed settlement landmark on Sophie at X 652.61 and Z 189.71. Players head here after finding Green Key because Kaiserplatz is the step that turns Green Key into Blue Key progress.
Green Key only matters when you are ready to turn a safe drop into the first real landmark step of the colored chain.
Blue Key only pays off when your Kaiserplatz stop was clean enough to justify pushing the chain one landmark deeper.
Dreadnought is the end of the colored-key chain, a late high-tier payoff stop where Black Key turns into the black vault run.
Evacuation Zone is the place where your run stops being loot theory and becomes a real extraction commitment.
Fort Istria is a fixed fort worth routing for Black Key progression and guaranteed NZ Mk2 Energy Rods at each extraction exit.
Meere Sauge is the point where the colored chain starts getting expensive enough to punish greed.
Radio Tower is the object that turns an exit option into a real extraction gamble, so timing matters more than bravery here.
Segen is the last landmark before Fort Istria, so it only matters when your run can still justify the final push.
Green Key in hand
Kaiserplatz is the route step that tries to turn that lucky drop into the next key.
A random Green Key does nothing by itself. Kaiserplatz is the landmark that asks whether you are really turning that drop into a chain run.
If the Trampler already needs repairs or your hold is full of safer value, taking the Kaiserplatz turn can cost more than the Blue Key step returns.
They go there to use Green Key and push the colored-key route forward into the Blue Key step.
Yes. Kaiserplatz is a fixed settlement with published coordinates on Sophie.