Well this is quite unusual. You've played monster catching games before but not like this. Familiars.io put a fresh spin on it all and it's quite ingenious.
Transformice, a classic 'MMO platformer' from Atelier 801 originally released in 2010 that to this day still seems to be quite popular now has a Linux build up on Steam.
Proton Experimental is the new testing area where Valve and their partner CodeWeavers continue rolling out extra fixes and improvements to the Proton translation layer for Steam Play.
War Thunder, the very popular free-to-play, cross-platform, MMO military now has its own Battle Pass system so dedicated players can earn even more from it.
While it's true that World of Warcraft doesn't support Linux, it has been playable on Linux for years thanks to the Wine compatibility layer and it appears even sorting addons is now a breeze.
Albion Online is a 'sandbox' style MMO where you pretty much do whatever you please, and it's proving to be quite popular with a healthy growth in players.
With EA continuing to dump their older games onto Steam, the popular MMO STAR WARS: The Old Republic is now available thanks to Steam Play Proton it's easier than ever to play it on Linux.
Sandbox Interactive are celebrating their MMO, Albion Online, turning three years old and it seems they're going from strength to strength with a lot more planned.
With the next massive update 'Rise of Avalon' coming to Albion Online in August, Sandbox Int have started giving out more in-depth details about the new features coming to this MMO.
Gaijin Entertainment have teamed up with Darkflow Software to create a new squad-based MMO called Enlisted, and they're taking a survey of what players use.
Vendetta Online, something of a classic MMO space game is now free to play for everyone until June 1. Everyone will be treated as if they're a paying player during this time.