Games like D.E.C.A.Y.

Games like D.E.C.A.Y. include Fallout 4, S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition, Fallout: New Vegas, Red Dead Redemption 2, and Metro Exodus. We matched them by the tags players give D.E.C.A.Y. on Steam (Shooter, Open World, Action, Adventure, and RPG): closest matches first, and among equally close ones the better-known games.