Mega Man Revolution - A fan-made 8-bit-style Megaman side scrolling shooter game.
Machinarium - Machinarium is independent puzzle / adventure game by Amanita Design
Megaman Origins - Between MM3 and MM4 there was a MM adventure, never told, until now:
Chuchel - comedy adventure game from the creators of Machinarium, Botanicula and Samorost.
Dead Cells - Castlevania-inspired, action platformer with roguelike elements.
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.