Apollyon — Steam game overview

Stored observation / content update: 2026-11-02T09:31:34.000Z

1979. P.L.U.T.O keeps sending your team of researchers back through G.A.T.E into the backrooms for deeper expeditions, but they are never happy with the lengths you go to. Nearest exit gets your team back safe. Only the deepest exit will suffice.

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