Lifeline - Lifeline is a playable, branching story of survival against all odds.
Hexen II - The Hammer of Thyrion project is a cross-platform source port effort of Raven Software's Hexen.
Katawa Shoujo - Katawa Shoujo is a bishoujo-style visual novel set in the fictional Yamaku High School for disabled...
Black Mesa - Black Mesa is a third-party remake of Half-Life developed and published by Crowbar Collective.
Life Is Strange - Rewind time to save your best friend in this epic drama.
Quake - Quake is a series of first-person shooter video games released by id Software.