Open Source Games and/or Engines

Battlestar Galactica Diaspora FSO Space Combat Knossos Free Space Open Mod Manager and Launcher https://www.hard-light.net/forums/index.php?topic=94068.0 Windows/Linux

Anime Graphic Novel/Space Sim Hybrid game. Installed and launched with Knossos https://www.hard-light.net/forums/index.php?topic=94068.0

Starting Morrowind using OpenMW engine and the curated 'I Heart Vanilla: Director's Cut' Mod List OpenMW: https://openmw.org/en/ Mod List: https://modding-openmw.com/lists/i-heart-vanilla-directors-cut/

checkiong out the OpenMW 'One day Morrowind Modernization' curated mod list on Ryzen 3400G Desktop using the built in graphics no Dedicated GPU OpenMW: https://openmw.org/en/ Mod List: https://modding-openmw.com/lists/one-day-morrowind-modernization/

Flare RPG Open Source Engine Empyrean Campaign Link to game: https://flarerpg.org/

An Open Source Turn Based Squad Combat Base Building Game Inspired by Classic X-Com It has been an open source gaming hidden gem for me https://ufoai.org/wiki/About

Open Source Engine

Open Source Real Time Strategy https://play0ad.com/

Oolite, a Modern Port of 8 Bit Classic Elite Download Link https://oolite.space/#download

The Babylon Project Freespace 2 Open Installed and launched with Knossos Freespace Open mod manager and launcher Link to Knossos: https://www.hard-light.net/forums/index.php?topic=94068.0