OpenRCT2

https://github.com/OpenRCT2/OpenRCT2

https://github.com/LRFLEW/HRM-CCPU

https://github.com/LRFLEW/OpenMC2

https://github.com/LRFLEW/OpenRCT2Launcher

https://github.com/rwengine/openrw

https://github.com/SFTtech/openage

http://openxcom.org/

http://www.freeciv.org/

https://github.com/LRFLEW/OpenMC2

https://openmw.org/en/