Taking inspiration from Capcom's Puzzle Fighter, Puyo Puyo and Dr Mario the developer Pxlplz has put out their competitive puzzle game Robo Puzzle Smash.
If there's one genre Linux has a pretty big hole in, it's fighting games. Thankfully it seems we may get another, as Fantasy Strike is showing signs of coming over to Linux.
Blade Symphony, a game where you need to prove you're the world's greatest swordsman is coming to Linux with the Blade Symphony: Harmonious Prelude update next month.
For those who love your arena brawlers, you might want to keep an eye on Mighty Fight Federation, a game inspired by Power Stone, Ehrgeiz, and Marvel vs Capcom as it's confirmed for Linux.
Bounty Battle looks extremely fun, with a cast taken from other popular indie games and it's now been fully funded on Fig. They also announced some new character's coming.
River City Ransom: Underground released for Linux originally in February, sadly the developer said they would send over a review key and never did. Now it's available on GOG so I've had a chance to take a look.