Osu! https://osu.ppy.sh/
this post was submitted on 23 Jun 2026
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Very good rhythm game, switched to it from Geometry Dash.
since no one's mentioned them:
- Oolite
- Dungeon Crawl Stone Soup
Battle for Wesnoth. It's a fantasy-themed turn-based strategy.
Though I haven't played it recently, I have some very good memories. It teaches you gambling and probability (especially on small multiplayer maps), and you develop feeling for the difference between 40% chance to hit and 30%.
The single-player campaigns are nice too. The one that I have in especially good memory is "Under The Burning Suns", which made a few creative and artistic changes to the game. It shouldn't be the first campaign you play, but it can be the second.
Thank you for this! I played it long ago when I used Ubuntu but couldn't remember the name when I wanted to play it again!
I still think about garak and under the burning suns from time to time. The plot is decent and while there's not much writing, what's there is generally good. I'd rate it better than the vast majority of games, but general consensus would probably place it below planescape torment and disco elysium. I really liked it.
Recently, battle for wesnoth has remade the delfador campaign and heir to the throne and tried to unify a bunch of the mainline campaigns together. Deceiver's gambit and the new httt are imo respectively second and third best wesnoth campaigns now.
I still think about garak and under the burning suns from time to time. The plot is decent and while there's not much writing, what's there is generally good. I'd rate it better than the vast majority of games, but general consensus would probably place it below planescape torment and disco elysium. I really liked it.
Recently, battle for wesnoth has remade the delfador campaign and heir to the throne and tried to unify a bunch of the mainline campaigns together. Deceiver's gambit and the new httt are imo respectively second and third best wesnoth campaigns now.
I'm not very good at it, but NetHack catches me every now and then.
Space Station 14 for me.
Beyond All Reason or Xonotic.
Xonotic is so fast and smooth.
BAR is the greatest RTS.
I don't see this one mentioned often, but Frogatto & Friends is a lot of fun if you like platformers with an old-school aesthetic. I keep it on my Steamdeck to play a few levels every now and then, it's a smooth game with a nice feeling to the controls.
The source is here.
Holy shit, I played Frogatto YEARS ago and totally forgot about it. Thank you!
Adding OpenRCT2, but I think most anyone who knows of OpenTTD knows of that.
Also, I'm not sure you can count OpenRCT2 as fully open source, as it still requires the closed-source game files to run -- they haven't replaced all the game assets yet.
(That said, it's still fantastic and by far the best way to play RollerCoaster Tycoon.)
Not sure if it's my favorite, but openttd was already mentioned.
It's such a fun game, especially after you beat a campaign level. I love that part purely for the freedom it provides after a hard fought battle.
I played hundreds and hundreds of hours of Tremulous back in the day, and at least a few of its successor Unvanquished -- before mostly falling out of playing online games.
Mineclonia has like 95% of the features of Minecraft but is way better because you don't need a Microsoft account, plus modding is easier.
Also awesome:
- Pingus - Puzzle game with mechanics similar to Lemmings
- Dr. Robotnik’s Ring Racers - Kart racing game based on Sonic Robo Blast 2 (SRB2), itself based on a modified version of Doom Legacy
- The Powder Toy - 2D physics sandbox game
From the Luanti/Minetest games, I also like Exile very much.
It is a bit hard and nerdy (you'll have to read the PDF guide/tutorial as you progress), but I found it calming somehow, though you're always in some crisis. I recommend single-player only.
In contrast to other Luanti/Minecraft-Like games, in Exile it feels very rewarding just to have found shelter from a storm and a cozy fire going, after you were on the edge of collapsing from exhaustion. Though you're almost certainly out of food and it would be dangerous to go out looking before the storm passes, you're not quite dying yet and you have time to make your mud hole a bit more cozy. (It's not a good game if you want to build huge creative castles, but you'll need to build and improve your home a bit.)
What's different between Mineclonia and Voxelibre?
Mineclonia is a fork of VoxeLibre (formerly MineClone2) that adds various improvements:
Differences from MineClone 2
- Overworld depth increased from 64 to 128 nodes
- Improved nether portals
- Improved leaf decay
- Improved villages
- Wandering traders and trader llamas
- Suspicious nodes, pottery sherds and decorated pots
- Conduits
- Deep dark biome and ancient hermitage (structure corresponding to ancient city)
- Functional loom to apply banner patterns
- Lush caves biome
- Cherry grove biome
- No in-game music, twice as small compared to VoxeLibre (formerly MineClone2)
- No hamburgers (but villagers follow dropped food as in Minecraft)
- No renamed mobs (e.g. Creepers remain Creepers, not Stalkers)
- Overhauled mob pathfinding, physics, and AI
- Custom Lua map generator featuring terrain and biomes that closely comport to Minecraft and which is compatible with Minecraft seeds
I had only heard of minetest. How does it compare?
An unofficial Minecraft-like game for luanti
Luanti is what Minetest was renamed to so it basically is Minetest
Luanti (formerly Minetest) is a little weird, in that it's really just meant to be the game engine, not the full game. Mineclonia is basically a mod that adds back in all the extra mobs and whatnot Minecraft has.
Oh, now I understand. Thanks so much for the explanation.
Isn't Doom open source now? Does that count?
It is and it does.
However it is unclear where Diablo stands. We have open source decompilations and remakes but as for the legality: grey area.
beyond all reason
SuperTux! 🐧
Endless Sky if you’re down for a top-down space shooter mining grind.
Or a trading grind, depending on your playstyle. I've barely ever mined in it.
How are they doing on the campaign/storyline, BTW? Last time I played it (a year or so ago) I managed to capture a jump drive and explored a bunch of really interesting areas outside human space, but it really felt like I wasn't intended to be there yet and the story wasn't really ready for it.
Endless sky follows the old and storied tradition where 90% of the game's content is locked behind speaking to a specific random NPC near the starting town, and not giving any hints at all that you're going the wrong way. You probably fell victim to that.
Unciv
Tux Kart
Katawa Shoujo: Re-Engineered
These 3 games are my favourites at the moment.
Friday Night Funkin!
Super Tux Kart
VintageStory is kinda open source, and far more polished than any other minecraft clone.
Which part of it is open source?
People have already said a couple of my favorites ( Super Tux Kart and Mindustry ), but I'd like to bring up one almost nobody talks about: Me And My Shadow
It's a 2D puzzle platformer where you control one person normally but then press space to record movement for your shadow character. Last time I tried downloading and playing it on Linux using the appimage on Sourceforge, pretty sure it didn't work because it might need an old glibc that has features that might not exist in newer versions.
This post reminded me of the game, so I'll download and see if I can run it on my desktop. Really feel like playing it now.
Edit:
I am too dumb to figure out how to make it work. Best I get is nothing. Not even a pop-up saying I need something else to make it work. So, I guess plating the windows release through WINE is the best I'd be able to do.
Dwarf Fortress
I also really like Nightmare Kart which is free on steam, but I don't think it is open souce...?
DF isn't open source tho.
I still play 0AD every now and then
Pixel dungeon.
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