Moon Runner is a lunar survival craft level and loot soft rouge-like esk adventure with nice graphics and lunar physics. (Best played with keyboard and mouse)

Rexaura is a free single player mod for Portal 1. (Best played with keyboard and mouse) The focus for this mod is on its difficulty level. A must for Portal veterans.

Portal Reloaded is for die-hard Portal veterans looking for new and creative challenges. One of the best Portal 2 mods. (Better playable with keyboard and mouse)

Good Focused Rouge-Like Space Shooter, ideal Title for a Sale Day. Demands some Time Investment but Overall very Solid with nice Graphics and Gameplay. (Should be played with Keyboard/Mouse)

Valley is an action-adventure platformer with a focus on jumping acrobatics and solving puzzles. (Best playable with gamepad)