The developer of Vampire Survivors, an absolute smash-hit on Steam has confirmed that a Linux version is in the works. Their latest update post mentioned it might be available by the end of the month, if all goes well.
Developed by poncle, it arrived on Steam in Early Access for Windows on December 17 - 2021 and suddenly on January 6 - 2022 it starting gathering thousands of players. More arrived each day, and this game of complete chaos suddenly managed to be a total hit with an all-time peak player count of 37,075 and that was only hit yesterday so it's continuing to grow all the time. On Steam, it's managed to hit an Overwhelmingly Positive rating too.
What is it? A "time survival" game. All you do is run around and try to survive as long as possible, before you inevitably die at some point. Simple gameplay that appears to offer that "just one more run" type of deal.
In regards to it coming officially to Linux, the developer mentioned they're "aiming for Mac and Linux builds by the end of the month" and that an "engine-port project is running in parallel with the development of the current Steam version of the game, so to ease porting to other platforms and ensuring maximum compatibility with the Steam Deck".