There are some insane deals this year
For RPGs, Disco Elysium is fantastic, but I would pirate it like the devs asked. Morrowind, Fallout 1 and 2, Underrail, and Elden Ring are other great buys. Crosscode is another banger.
Not too versed on turn based tactical.
As for roguelikes, check out Caves of Qud, Path of Achra, and Project Zomboid. Dwarf Fortress is great too, but it’s more city sim, same as Kenshi and Rimworld.
My favorite genre is probably RPG, haha, but I have been woefully missing out on horror bangers and am making up for lost time.