I picked up Phoenix Point because I was feeling that XCOM itch and knew if it wasn't this I would start a Long War game of XCOM2 which would probably take 2 years to finish if I did at all.
Far Cry 5 is $6 and though I'm not particularly tempted I've heard good things.
Mad Max is $2 and if you haven't played it I would say it most certainly a bargain at that price. It is fairly boilerplate open world where you take towers and bases to gather resources for upgrades and eventually unlock tougher and tougher zones. The vehicle combat is really the standout and your car is the star of the show. Just tearing around the desert is fun in itself. Taking caravans is particularly cinematic and satisfying to eventually bag one that you just weren't quite able to before your latest upgrade. Unfortunately the base assault and dismounted fighting is pretty forgettable with batman arkham-style auto-target with quicktime blocking that doesn't change very much as you unlock new abilities. My 2nd favorite open world game after shadow of mordor/war.
Nothing from this official sale (haven't really looked yet), but I recently picked up Menace from the Deep, Mortal Glory, and Hometopia.
I've mostly been playing Menace from the Deep, which is a fun card battler...but with some really odd balance and gameplay decisions.
Haven't played Mortal Glory yet, and haven't played much Hometopia, but was a little disappointed so far. Cool concept, wasn't super impressed with the execution, but I might just have to spend more time with it. Sadly it seems like all lots are flat, too, so you can't really build up into terrain. Again, haven't spent much time though, and could be missing stuff.