Strangely, I'm still playing 7 Days To Die. Steam tells me I've played it for ~2200 hours. There are enough overhaul mods to keep me interested and it's enough of a sandbox game to make it possible to implement whatever odd idea flitters through my head. Redirect a river. Lay a tarmac road, including a section through a tunnel I dug through a hill. Build a giant bright white pyramid with its own power station to power the ridiculous amount of lighting on it. Plus it has Rekt, the rudest merchant in any game and that entertains me. I'm still partway to convincing myself to buy a new CPU (and motherboard and memory) because of it. 7DTD is fully voxel with realtime structural integrity, so it's almost always CPU limited. I can drop as low as 55 fps in dense urban areas with my 5700X. A 9800X3D would do much better...
Other than that, I'm also still playing Revhead a bit. And CarX Street, which reminds me of Need For Speed Underground. Which is a very good thing. Although I'm wondering how the devs are getting away with copyright issues. The cars in the game are obviously real world cars with slightly changed names, e.g. the car in the game that is very obviously a Mazda MX-5 is called NX-5. Maybe the game isn't big enough to have been noticed. It's not big enough for the multiplayer aspect of the game to be of much use. It's theoretically like TDU in that respect, but not really as you're unlikely to find other players. But I wanted it as a single player game anyway.
I might get Medieval Blacksmith next. Or maybe look through my libraries, where I will inevitably find some games I bought and never played.