Parallel Realities[1] has made several nice games, including Blobwars, Starfighter and Legend of Edgar, which have fully open source game engines, and they trie

Parallel Realities[1] has made several nice games, including Blobwars, Starfighter and Legend of Edgar, which have fully open source game engines, and they tried to use free sounds and graphics. However, the devil is in the detail with many "free" assets, and it turns out a lot of them actually did not have a free enough license for most Linux distributions. I've been involved in getting Blobwars 1 and 2 and Starfighter updated with truly open content with some success, unfortunately Blobwars 2 still needs a lot of work. Open content is still hard; a lot of sound, music, and textures might be under a relatively free license, but often source material is lacking. I've given a talk about this at FOSDEM 2017[2]. [1]: https://www.parallelrealities.co.uk/games/ https://www.parallelrealities.co.uk/games/ [2]: https://archive.fosdem.org/2017/schedule/event/ogd_gpl_assets/ https://archive.fosdem.org/2017/schedule/event/ogd_gpl_asset...