This stylized simulation of the American oil rush of the 19th century recently got new content in the form of DLC, titled The Heat is On. I gave both the base game and DLC a look.
For The King, a strategic RPG that has turn-based combat along with procedural maps, quests, and events looks like it's being prepped for a Linux version as the final release is soon.
While I was asleep Valve announced some new profile privacy settings which are good for users, but it seems Steam Spy is likely going to shut down as a result.
Farm Together is a really sweet and simple farming sim from Milkstone Studios that I've been really impressed with, it's expanded a lot during Early Access too.
I've recently taken quite a liking to KeeperRL, a surprisingly good mix pulling in features from dungeon building, exploration and roguelikes to make quite an engrossing game. The developer also recently put out Alpha 24.