I already got Luanti (Minetest) and Xonotic but I thought I’d ask.
The Dark Mod is an awesome tribute to the Thief series, but often goes unmentioned in threads like this for some reason. Arguably, it’s even better than Thief at this point, and has new content added on a regular basis by it’s community.
It used to be (I believe) a Quake mod back in the old times, hence the name, but it’s long since been transitioned to a standalone game with a different engine.

It’s just a little jank for my tastes. It feels very much like Thief 3, which personally I love but a lot of people didn’t, and was undeniably not as good as Thief 1 and 2.
Simon Tatham’s Puzzles. 40 different puzzle games. It’s in the Debian repository and it’s on F-droid. The package in Debian is called sgt-puzzles.
it’s kind of a game for sickos but if you like arcade-style rhythm games, osu!lazer is FOSS. Stable (the legacy Windows-exclusive client) is not FOSS, however. There’s also Visual Pinball, a pinball table simulator. It’s a pain to set up on Linux in my experience but if you like pinball, people out there have recreated tons of classic tables for it.
Edit: Realized I was vague in my comment, what I mean by game for sickos is that osu! is both really addictive and very intense on your hands even compared to other competitive rhythm games imo. So I would urge anyone who wants to try it to be cautious not to overexert yourself or else you can easily hurt your hands. Very fun game I think! But yeah if you play it make sure to stretch before playing and take regular breaks.
i am tired boss
check Unnamed FOSS Game Thing for niche games
on mobile i actually find a bit of fun with “astro loop” on fdroid
Openmw
If we are allowed to include games you have to bring your own files: zombdroid, and rimdroid. They let you play project zomboid, and rimworld on your phone.
Probably vibe coded but found them on a obtainium app list recently and they perform surprisingly well. Rimdroid sadly suffers in android desktop mode
*edit forgot people use openmw places other than the phone and got excited to share my finds. My post is not relevant to this thread.
Infra Arcana
Traditional roguelike with lovecraftian horror inspiration. It’s hella hard but also weirdly relaxing after a few tries, plus the ambiance is exquisite.
Mindustry
not a poor man’s factorio
Is really fun, has two main game modes: Erekir (Classic, high skill ceiling, less hand holdy) and serpulo (More polished, Easier and more straightforward)
0a.d
Age of empires, I loved AoE2 and this game scratches that itch too.
Here are my favourite complete (not beta or prototype) FOSS games.
X-Piratez (openxcom mod about lesbian space pirates, haven’t played it but looks like it has very deep lore and complex mechanics)
Warzone 2100 (RTS)
Battle for Wesnoth (TBS)
Mindustry (Factorio-like but more casual)
0 A.D. (RTS similar to Age of Empires)
Beyond All Reason (RTS similar to Total Annihilation/Supreme Commander)
openTTD (transport tycoon)
Cataclysm: Dark Days Ahead
There are a surprising number of good open source RTS games due to the spring engine.
https://springrts.com/wiki/Games
Beyond all reason is good fun.
Openrct2 openttd xmage
good Owl

No Brogue CE in this thread…
ⓘ Remember to enable JPEG-XL support in your browser, even on your phone!
I’ve been meaning to tell u that u have good taste in image formats :3
I will fry before I start using AV1 for images. Using it for video is bad enough but the alternative is HEVC soooooooo
Why yes thank you
AV1 also doesn’t have sick progressive loading or animation support or any of the cool shit JXL has…
ⓘ Remember to enable JPEG-XL support in your browser, even on your phone!
Not poster children for modern FLOSS, but two fun oldies
Slash’em is an old NetHack GUI mod, but it is so much fun.
In the same genre, Elona Plus (download link here) is ancient, open source, super weird but extremely content-filled. And continues to be updated to this day. I’ve probably spent 100 hours on it over the years.
Ty for the reminder that Elona exists :3 Uhhhhh suddenly remembering all the “problematic” shit in that game as fun as it can be…
Also Dungeon Crawl Stone Soup is fun and maybe easier to get into than NetHack in some respects
I’ve played a little tiny bit of that game, what is problematic in it?
SuperTuxKart is a silly yet fun one
Do people still like Veloren? It’s like FOSS Minecraft and then some
lmao this game has HRT: https://wiki.veloren.net/wiki/Hastened_Reformation_Tincture
I like Veloren, but it is not FOSS Minecraft, and that misapprehension made it a lot harder for me to get into it at first. Veloren is much more like a traditional RPG, and doesn’t really have the free-form creative aspects of Minecraft.
SRB2Kart with mods is a better Mario Kart
source: https://github.com/STJr/Kart-Public
a silly video: https://www.youtube.com/watch?v=1BgUQB2kjPs
ring racers is the latest version, actually
it’s a fully fledged game now
oh man i love ring racers but it is not an easy game to learn, my friends just wanna keep playing SRB2Kart
mods-wise srb2kart is the winner, you can play as sans and shit. ring racers is more of a singleplayer experience at this point
This one? https://github.com/KartKrewDev/RingRacers
Also, nice to see you again comrade 😁
FUCK YES RING RACERS WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
SRB2Kart is a kart racing mod based on the 3D Sonic the Hedgehog fangame Sonic Robo Blast 2, based on a modified version of Doom Legacy.
god I love this kind of shit
And a playable 2d rocket league
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy:















