- Billiards (Lua, Objective-C, GPL-3.0, beta, inactive since 2012)
- Bygfoot (Java, GPL-2.0, beta)
- Cannon Smash (C++, GPL-2.0, beta, inactive since 2003)
- Core Breach (C, Objective-C, GPL-2.0, mature, inactive since 2012)
- Dust Racing 2D (C, C++, GPL-3.0, mature)
- Emilia Pinball (C++, GPL-2.0, beta)
- FooBillard++ (C, GPL-2.0, mature, inactive since 2012)
- FooBillard (C, GPL-2.0, mature, inactive since 2010)
- Free Tennis (OCaml, GPL-2.0, beta, inactive since 2005)
- Freekick 3 (C++, Python, GPL-3.0, mature, inactive since 2015)
- GPL Arcade Volleyball (C++, GPL-2.0, beta, inactive since 2006)
- H-Craft Championship (C++, C, zlib, mature, inactive since 2015)
- HoverRace (C++, Custom, mature, inactive since 2016)
- Kolf (C, GPL-2.0, mature)
- Libre Pinball (GDScript, MIT, beta, inactive since 2015)
- NetStatsBaseball (C, Public domain, mature)
- NOVA PINBALL (Lua, GPL-3.0, beta, inactive since 2017)
- Nox Imperii (C, GPL-3.0, mature, inactive since 2016)
- Open Soccer Star (PHP, GPL-3.0, beta)
- OpenSoccer (PHP, GPL-3.0, beta)
- OpenWebSoccer-Sim (PHP, LGPL-3.0, mature)
- Skifree-HTML5-clone (JavaScript, GPL-3.0, beta, inactive since 2011)
- skifree.js (JavaScript, MIT, mature, inactive since 2016)
- Tennix! (C, C++, GPL-2.0, mature)
- Tux Football (C++, GPL-2.0, beta, inactive since 2012)
- Visual Pinball (C++, MAME, mature)
- YSoccer (Java, GPL-2.0, mature)