mdtrooper I think it is good idea listing free games in twitch. Well, I start it (the problem is Twitch does not show all categories that you are following they...maybe in the future I will add more): https://www.twitch.tv/directory/game/Mindustry https://www.twitch.tv/directory/game/Dungeon%20Crawl%20Stone%20Soup https://www.twitch.tv/directory/game/DDraceNetwork https://www.twitch.tv/directory/game/Minetest https://www.twitch.tv/directory/game/OpenTTD https://www.twitch.tv/directory/game/Progress%20Quest https://www.twitch.tv/directory/game/shapez https://www.twitch.tv/directory/game/Warzone%202100 https://www.twitch.tv/directory/game/Soldat
Elouin In Software and Game Development you can also sometimes find people doing gamedev with foss tools like Godot.
poVoq This should probably mention: https://www.twitch.tv/opensource_gaming (oh seems like the media embeding is working for Twitch... not sure if I like that.)
Modanung poVoq Franzo told me last July that he had moved and stopped streaming because it's too noisy where he lives now. So you might as well go straight to PeerTube.