Another Jupiter Hell update arrived recently, as ChaosForge rip and tear towards the Early Access release next month. I expect great things when this is finished, as it's already glorious.
The creative platformer DASH: Danger Action Speed Heroes is releasing soon but for those interested in help to test, you can quite easily grab a beta key.
Eleventh Hour Games have announced that their impressive action-RPG 'Last Epoch' is getting a big update with the Beta release on April 30th, a Steam release will also happen then too.
Valve haven't given up on their home-grown Linux distribution yet, with SteamOS seeing another beta update. Additionally, there's another Steam Beta Client update about.
Just before the weekend appears, we have the brand new Proton 3.16-8 beta available for Valve's Steam Play. This release includes some mighty fine fixes and updates.