KeeperRL is a Dungeon Keeper and Dwarf Fortress inspired dungeon simulator built on top of roguelike mechanics. You become a Sauron-like character, searching for ultimate knowledge of destruction.
Skyward Collapse is a pretty interesting looking god-game from Arcen Games who have become Linux-friendly developers recently, they have stated Skyward Collapse will come to Linux.
You have ~20 days to vote for your favourite project of the month for May. The projects are open source engines for commercial games/commercial content.
A mature, story-oriented adventure game with a unique style. Currently seeking funds on Kickstarter. They've just announced Linux support as standard, rather than as a stretch goal as originally planned.
Depths of Peril is a single player action RPG with strong strategy elements. You play as a faction leader protecting the barbarian city, Jorvik, by destroying threatening monsters and completing quests.
Steam is really bringing in the indies aren't they! They have pushed the button for another batch of titles to be greenlit, this time there are 37 100% confirmed Linux titles.
How to setup OpenMW for modern Morrowind on Linux / SteamOS and Steam Deck
How to install Hollow Knight: Silksong mods on Linux, SteamOS and Steam Deck