inXile Entertainment have today officially released Wasteland 3 for Linux (and macOS), following on from their successful Fig campaign in 2016 and Windows release in August 2020.
Following on from the events in Wasteland 2 from 2014 (you don't need to play it), Wasteland 3 is a modern squad-based RPG with challenging tactical turn-based combat. This time it has a deep and reactive story full of twists, turns, and brutal ethical decisions. You get to create and customize a squad of up to six Rangers, plus you get a powerful customizable truck too which you can equip with some fun weapons.
From the brief release announcement, "We greatly appreciate your patience as we worked to bring the game to these OS’, and we’re happy to have it playable for you before the end of the year. We hope you enjoy exploring post-apocalyptic Colorado during your holiday break.".
Currently, the co-op ability for both Linux and macOS is limited. For Linux there is no co-op on GOG at all as they depended on GOG Galaxy which GOG have still not ported to Linux, plus on Steam the co-op is only compatible between Linux and macOS together (Windows is by itself). The "Direct Connect" option is also not available but will be coming in an update in January.