sndein I really like the games by Matthew D. Steele https://mdsteele.games/ The guy doesn't seem to really advertise them himself nor does he offer them anywhere but on his own website or the Github repos so very few people seem to know about them.
Technopeasant I was digging through the bones of the former Freshmeat back in February and found a couple of lost games of note. https://libregamewiki.org/OilWar https://libregamewiki.org/The_Sheep_Killer https://libregamewiki.org/Adventures_on_Planet_Zephulor https://libregamewiki.org/Enemy_Lines_3 I created an easier set of links for navigating Freecode via the Wayback Machine here: https://libregamewiki.org/Libregamewiki:Suggested_games#Databases
mdtrooper Cataclysm DDA is awesome game (well you maybe need a month to learn to play but it is great). I am one of coordinator of spanish translation and I love this game.
dulsi mdtrooper I've gotten killed in Cataclysm DDA a few times. I looked up how to survive afterward. It had lots of "Then you go to the city/town?" followed by "No you will die."
Peter TPW I went through the FSF game directory Thanks for pointing to this, I see a lot of games there that I will test. Here the link for people interested: https://directory.fsf.org/wiki/Category/Game
Technopeasant Peter There are quite a few old game databases out there. https://libregamewiki.org/Libregamewiki:Suggested_games#Databases
TPW Thanks for the Links @Technopeasant ! Peter, if you dig out something that plays well be sure to post here :D.
Technopeasant Happened to come across this. https://www.linux.org/threads/nighthawk-4-0-a-restored-open-source-arcade-game-requesting-alpha-testers.31163/
Technopeasant https://slime.tuxfamily.org/index.php?sid=a57ab146b6715cca63ee47379454235b As with Hikou no mizu, I like the AI. 😉
Technopeasant I can't seem to figure out how to actually spawn in this, although the AI is entertaining. https://sourceforge.net/projects/flaw/
Technopeasant Too frustrating for me, but seems polished. https://www.markboyd.me.uk/games/flyhard/flyhard.html
Technopeasant Now here is a real gem that had somehow passed me by. https://www.indiedb.com/games/warlocks-gauntlet