Hedgewars - Hedgewars is a Free to play, Single-player and Turn-based Strategy video game developed by Hedgewars Development Team.
Super Meat Boy - Let's start with what's the same: Dr. Fetus is still a jerk, gameplay is super challenging but fair, there are tight controls and great levels and you will die. a lot.
Counter-Strike 2D - Top-Down Multiplayer Shooter
Limbo - “Dark, disturbing, yet eerily beautiful, Limbo is a world that deserves to be explored.” Joystiq. “Limbo is as close to perfect at what it does as a game can get.” Destructoid. Buy LIMBO: Special Edition.
Ironfell - Ironfell is a time travel themed massive multi-player online real time strategy game.
Hollow Knight - Descend into the Dark Venture down into a beautiful, ruined world of insects and heroes