The ones that I find myself going back to the most in the last decade are indie classics. Hyper Light Drifter, Kerbal Space Program, FTL: Faster Than Light (I just realized all these titles sound similar, but they’re a 2D character action game, a spaceflight simulator/shipbuilder, and a very unique strategy game, respectively, and they’re all among the best in their genres). Also, as a horror game fan and a Resident Evil fan in particular, I keep replaying the Resident Evil 2 remake from 4 years ago; easily one of the best horror games ever made.