Linux / GNU games

Samorost 2 — point-and-click adventure, graphic adventure game, art game, puzzle video game (2005)

Vangers — science fiction video game, post-apocalyptic video game, arcade, racing video game, role-playing video game, action-adventure game (1998)

Project Hospital — business simulation game, simulation video game, real-time strategy (2018)

Loop Hero — existentialist video game, post-apocalyptic video game, fantasy video game, roguelike (2021)

7 Mages — role-playing video game (2016)

Transport Fever — business simulation game (2016)

Milk inside a bag of milk inside a bag of milk — visual novel (2020)

Imperium Galactica II: Alliances — science fiction video game, real-time tactics, 4X (1999)

Dex — science fiction video game, cyberpunk video game, action role-playing game (2015)

Tricky Towers — falling block puzzle game (2016)

GLtron — video game (1998)

Oil Rush — post-apocalyptic video game, tower defense, real-time strategy (2012)

Screamer — racing video game (1995)

Move or Die — puzzle video game (2016)

Tony Tough and the Night of Roasted Moths — point-and-click adventure, halloween video game (1997)

Punch Club — simulation video game, fighting game (2016)

Train Valley — strategy game, train simulator, puzzle video game (2015)

Cold War — stealth game (2005)

Please, Don't Touch Anything — puzzle video game (2015)

Resonite — casual game, social VR (2023)

Gods Will Be Watching — science fiction video game, adventure video game (2014)

Dominions 3: The Awakening — turn-based strategy video game (2006)

Knights of Pen & Paper — role-playing video game (2012)

The Red Strings Club — cyberpunk video game, LGBT-themed video game, adventure video game (2018)

Black Book — role-playing video game (2021)

Pixel Dungeon — roguelike (2012)

SteamWorld Dig 2 — Metroidvania (2017)

9 Monkeys of Shaolin — beat 'em up (2020)

Skul: The Hero Slayer — roguelite, action roguelike, platform game, action game (2021)

Yuppie Psycho — adventure video game (2019)