After being in Early Access for around a year, Timeslip Softworks have announced that their turn-based tactical RPG Vigilantes will release in full this week.
Geneshift (also known as Mutant Factions or Subvein) is a top-down shooter with some seriously good action that's currently in Early Access and the developer has decided to add a Battle Royale mode.
Failbetter Games have announced that Sunless Skies is set to leave Early Access on January 31st, 2019. They've also released a free pen and paper RPG system.
Din's Legacy, the latest action-RPG from Soldak Entertainment has entered Early Access on Steam and early reports suggest it could be good when further developed.
The Misfits, a free to play third-person shooter from PigDogGames that's currently in Early Access has a Linux version on Steam, although it's currently hidden it does work well.
Rise to Ruins, a village builder that mixes in some god sim fun just went through a bit of an evolution with the latest patch, which really is absolutely massive.
Solace Crafting from Big Kitty Games is an open world fantasy survival RPG, with an aim to be as open as possible and let you basically do whatever you please.
Dicey Dungeons from Terry Cavanagh, Marlowe Dobbe, and Chipzel is a great roguelike that quickly becoming a favourite of mine and this latest release is excellent.
Oxygen Not Included, the excellent survival colony builder from Klei Entertainment now has even more depth to it, as it will allow you to fly your Duplicant people off into space.