Many software titles on Mac OS come with the uninstall directions of simply "Drag the application to the Trash and empty it".
Amnesia: The Dark Descent is a first person survival horror.
A roguelike adventure game with several tilesets to choose from.
OpenGL port of the classic 3D Shooter game Descent 2
D2X-Rebirth is a free application that allows you to play Descent 2 game.