Best shooter out there. Definately.

I've been with KSP since 0.23 back in 2013, and with version 1.0 recently released, I am amazed by how persistently awesome this game/simulator has been. Although I think it would have been better to fix the technical problems in the game before the 1.0 release, this game is miles better than the average Early Access game. It's DRM-free, easily-moddable, and delivers realistic simulation, and hence it sets an example to all other games and simulators.