While Alpha 23 of the free and open source RTS 0 A.D. was released way back in May of 2018, it did come with some issues and they've put out an updated version now to improve it.
The team behind the PlayStation 3 emulator RPCS3 put out their November progress report at the end of last month, showing some impressive work once again.
It appears we missed this one from December last year, vkQuake2 is Quake 2 amplified with Vulkan support.
Just before the end of 2018, the open source classic RTS Seven Kingdoms: Ancient Adversaries had a fresh release out.
Earlier this month, the Doomsday Engine which runs classic titles like Doom, Heretic and Hexen had a new release out.
KKnD, the classic strategy game is being revived and the new open source project has the first release out.
KeeperRL is a great little game, one that mixes in roguelike and RPG elements with dungeon building and another release went out recently.
Mindustry is a free and open source Tower Defense game that pulls in elements rather similar to Factorio and it seems like it could be quite good.
After being quiet for some time, the Unvanquished team is back and they have quite a lot to show off in the new release of their free and open source shooter.
If you like your sci-fi co-op games, EmptyEpsilon might be one to take a look at which is free and open source.
For those of you using Intel and AMD (and some older NVIDIA cards) Mesa 18.3.0 was officially released today.
Popping up a little while ago on Twitter, NVIDIA has announced that they've now put PhysX under an open source license.
xoreos is a FLOSS project aiming to reimplement BioWare's Aurora engine (and derivatives), covering their games starting with Neverwinter Nights and potentially up to Dragon Age II. This post gives a short update on the current progress.
SuperTux, a name I've not heard in quite some time, a free and open source platformer inspired by Super Mario Bros is still chugging along and it's heading towards a new release.
Developer Priority Interrupt has officially released the game engine and editor behind their first-person dungeon crawler as open source.
SuperTuxKart, one of the stalwarts of Linux open source gaming is finally getting online multiplayer. They're also now asking for testers.
RPCS3, the open source PlayStation 3 emulator is coming along nicely. The latest progress report goes over some recent work with various improvements.
GDevelop is an open source cross-platform event-driven game engine that's quite promising. It's currently closing in on a new major release and it's also now on itch.io.
Wyrmsun, the free and open source retro-looking RTS just had a sizeable update with some great new stuff included.
For those who love their arcade-style racing games Yorg is actually quite amusing. The developers just release Yorg 0.10 and it's quite an improvement.
