STRAFTAT originally launched in October 2024, and just recently the developer added a Linux version. It's a completely ridiculous competitive 1v1 online shooter with quick rounds and lots of weapons.
Each round in the game takes place on a different map, with each map having a different set of weapons. The weapons are pretty ridiculous, as is the game as a whole. Pretty fun though. The Linux version arrived with the Music Update v1.2.2 which also added in a whole bunch of new music tracks, a match history feature, new maps and a new "overpowered bukanee-like smg".

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While the game is free to play there is also a single DLC you can buy that gives you over 70 additional maps and 10 extra guns. The DLC content is available to both players, as long as the game host has it, which seems entirely reasonable to me.
A really over the top game for when you and a friend (or a random person online) fancy blasting each other to pieces for a few rounds when you have some free time.
The Lemaitre Bros previously released BABBDI in 2022, which is a short, first person exploration experience.
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