Splitgate, originally called Splitgate: Arena Warfare, is going through a huge overhaul and relaunching on July 27 and now Linux support is confirmed (Twitter). Not only that, there's a limited-time Beta that's going live today so that should be quite exciting.
It has been described as Halo meets Portal, with fast-paced arena styled gameplay with player-controlled portals so you can imagine how nuts that is. When the big new version releases it's going to consoles too, and there will be cross-play between them all. Having portals like this in an FPS is quite brilliant, giving you the ability to drop from any direction onto unsuspecting players.
Check out the new trailer:
What else to expect from it? A full challenge system, character customization, a competitive leaderboard and ranking system, more than 15 casual and competitive game modes, over 20 maps all with wildly different themes.
Best of all? It's going to be free to play so you have nothing to lose but time.
Check it out on Steam.