I personally love Naev and Mindustry
Nexuiz, or whatever they call it now after the original dev trademarked and sold the brand.
Edit: Xonotic is the name of the active fork.
Apart some of the already mentioned (mindustry, 0ad, beyond all reasons, zero-k), also minetest (minecraft), destination sol.
l’ve tried hege wars (worms clone) but found it meh. Sometimes supertux.
Haven’t played Minetest in a while. I remember having lots of fun with modding. 0ad is also another great open source title
Lately the modding has been getting really good, and while the game engine already has volumetric lighting (or something), there are even mods now that render everything beautifully that probably need a really good graphics card to keep up with.
Unciv
I used to play Tremulous. That was a blast. Very clever game.
Whoa same! Always played on that server that had greatly increased the build points so there were turrets everywhere :D
Oh yeah. I remember that. There was a nice consistent player base on that server
That takes me back. Waiting on 1.2 release, any day now…
I heard Unvanquished maybe scratches the same itch
Stalker anomaly 🥸
/s Forcefully open sourced
Open RCT 2
Mine is Mindustry too
OpenTTD is also nice
OpenTTD is awesome, especially when you dive into the NewGRFs (mod content)
Simutrans is also pretty cool. Similar game but definitely makes some different choices that make it play differently and has some nice features that will probably never make it into OpenTTD
Star Ruler 2, the company closed down and open sourced the game, it’s a space 4X real time, has pretty good fleet combat and u can design ships, i think wasn’t popular because the resource management and card system is a bit weird and harder to understand than other strategy games, but pretty fun after u get used to it…
I think I’ve heard of this one. It’s really good that they released the source.
There’s a community maintained fork, but i think it’s missing some files (ship blueprints for some races)
Probably the Ur-Quqn Masters.
https://uqm-mods.sourceforge.net/Download
An HD Remaster with optional QoL fixed and added content!
One of the best games of all time.
I’m a pretty big fan of Star Control: Origins, too.
I play DDay Normandy, a quake 2 mod
OpenRA d2k
Minetest
Veloren
Fun games
There are a lot of great responses on here! I’ve been playing (at least until my steam deck shit the bed two days ago) around with OpenRA and Minetest.
The responses have been amazing, will certainly be coming back to this thread whenever I want to find a new game
Endless sky. You start off with a single spaceship and fly around the galaxy trading, fighting pirates, and buying/capturing more ships. The devs are still regularly adding new content too.
I used to spend hours on this before playing Naev (which is also meant to be like the Escape Velocity series, infact was originally a acronym: Not Another Escape Velocity).
Have they added any new campaigns lately? Really want to finish the Wanderer campaign, but I’m not sure anyone has picked it up yet after the original developer had to step back.
They’ve been working on the Hai storyline a lot, and last time I played there was a lot more in Coalition space.
Endless Sky is amazing. I’ve put so many hours into it. It’s available on Steam or as an AppImage from https://endless-sky.github.io
I love this game too, I was deeply into all three of the Escape velocity games as a kid and Endless Sky scratches that itch perfectly
How is Linwarrior 3D? Has anyone played it? It claims it’s an open source game similar to MechWarrior 2.
CorsixTH is a cool project if you liked Theme Hospital back in the day: