- AdaVenture (Ada, GPL-3.0, mature)
- Clou! (C, Custom, beta)
- Colossal Cave Adventure (Python, Apache-2.0, mature)
- Digital: A Love Story (Ren'py, CC-BY-NC-SA, mature)
- Dragon History - Dračí Historie (Pascal, Script, GPL-2.0, mature, inactive since 2010)
- Fanwor (C, GPL-2.0, mature)
- Free in the Dark (engine) (C, C++, GPL-2.0, beta)
- GameLV (C++, GPL, beta)
- Murder In The Public Domain (C++, GPL-3.0, mature, inactive since 2013)
- Sentient Storage (Python, Public Domain, mature)
- Sintel The Game (Python, MIT, beta, inactive since 2014)
- Star Maiden Astraea Rio (Ren'py, CC-BY-NC, mature)
- TwinEngine (C, GPL-2.0, mature, inactive since 2015)