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.
The free FPS QuakeWorld Team Fortress (previously Team Fortress, Quake Team Fortress) that later became the inspiration for Valve's own Team Fortress games has a new release out with a Linux installer.
Where The Water Tastes Like Wine: Fireside Chats acts as a free standalone companion to Where The Water Tastes Like Wine and it's out with Linux support.
SuperTuxKart, one of the stalwarts of Linux open source gaming is finally getting online multiplayer. They're also now asking for testers.
With a style that resembles the original Age of Empires a little, The Fertile Crescent is an RTS set during the Bronze Age in the Ancient Near East.
Urban Terror: Resurgence, the revamp of the classic free FPS Urban Terror has some fresh footage of the alpha that's running on Unreal Engine.
Love your Doom mods? Total Chaos is a total conversion for Doom 2 which puts you on a remote island known as Fort Oasis in a survival horror setting.
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.
If there's one issue The Culling has it's players, not enough of them at certain times. To help with this, they've added bots to fill the gaps in online play.
The vehicular combat MMO just got a little bit bigger with the inclusion of ships for all players. There’s also plenty of other goodies in the sizeable update.
Robocraft, the rather good free to play robot building and battling game just added a an early version of their wave-based campaign mode.
Zachtronics did something fun recently, they released a free standalone called EXAPUNKS: TEC Redshift Player which allows you to play games for the fictional console from EXAPUNKS.
A developer from the Unsung Warriors team emailed in about their 2D action-adventure. They've released a free prologue with Linux support and it's pretty good.
Fancy trying out another free Doom game? If you have quick reaction times and love slaying demons DaggerHell Overkill is for you.
This post-apocalyptic WAD both oozes with style and is technically impressive. It’s been a few years of development but you can finally try out episode one.
Galaxy in Turmoil is an upcoming shooter that looks promising, with large 32v32 battles that take place both on the ground and in the air. The developers are looking to do a Linux version too.
The excellent open source RTS game engine OpenRA, which allows you to play classic Command & Conquer titles has a new release out.
The Misfits, a free to play third-person shooter from PigDogGames that's currently in Early Access has a Linux version on Steam, although it's currently hidden it does work well.
The vehicular combat MMO has released its 1.81 update which brings a number of goodies for players, including several helicopters that are available for testing.