Gaming

There are a few open source game projects I follow. I suppose the most famous one is the Freespace 2 source code project. Although it didn't start open source, the original devs open-sourced it later. It has great support, and a great modding launcher called Knossos. To play the game, even with the source code, you either need the original disks or a copy of the installer from GoG, but it's really cheap. Getting it working on Windows is pretty easy, but Linux is only slightly more complicated. (Fortunately, there's a new launcher that makes it way easier).

If you're interested, let me know.

If you didn't already suggest it, I would have suggested Veloren!

Technically not the whole game, but (Smash Remix)[https://github.com/JSsixtyfour/smashremix] is an open source rom hack of the original Super Smash Bros. for the Nintendo 64. It's been a blast from the past and I'm enjoying the hell out of it.
I also love the fact that a lot of N64 emulators are open source too, like Mupen64 or simple64

Pokemon Auto Chess. Literally what the name implies, a Pokemon auto battler game. Honestly it's really well-polished for something only a couple of people are working on (aside from commissioned sprite artists) and has an active community to go with it.

Technically not the whole game, but (Smash Remix)[https://github.com/JSsixtyfour/smashremix] is an open source rom hack of the original Super Smash Bros. for the Nintendo 64. It's been a blast from the past and I'm enjoying the hell out of it.
I also love the fact that a lot of N64 emulators are open source too, like Mupen64 or simple64

0.A.D., Veloren and Xonotic are my favorites. Also Sonic Robo Blast 2 is freaking awesome

For me it's CDDA, a quite realistic and deep apocalyptic survival game with very frequent updates(on the experimental branch)

[https://spacestation14.io/](Space Station 14)

Openttd

0 A.D. and Beyond All Reasons for me ^^

One of my absolute favorite games as a kid was Glest. Turns out it's open source and is now available as MegaGlest!

It takes a lot of inspiration from Warcraft but it has its charm and many of the races are quite unique in how you play them!

It's old but I always really liked WARSAW it was/is a quake3 port but with more cartoony outline graphics similar to Borderlands style.

Only one that comes to mind is Lugaru. The creator had this weird legal battle where someone stole the game, ported it to iOS, and the thief claimed because it was open source he was allowed to sell it.

[](Dungeon Crawl Stone Soup)

Tremulous - The game was so fun back then (like 10 years ago ?) I guess it's a dead game now.

I've had a ton of fun in Red Eclipse over the years.

The only one Ive played for any length of time is freeciv, which as the name implies is based of the civilization games, mostly civ2. It's a bit old looking these days and setting up multiplayer has always been a bit fiddly, but the gameplay is pretty fun imo.

InfraArcana was a little bit tough but is a very good roguelike