Nier Automata
Dark Souls (mostly 1 & 3, +Bloodborne if you've got a PS4)
Hunt: Showdown
Braid
Tallowmere
Endless Legend
Tabletop Simulator OR Tabletop Playground
Wallpaper Engine (not a game, but great tool)
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Great too, but generally not mentioned to detract from list above:
Waves
Warframe
My Time at Portia
Stellaris
Fences (not a game, but great too)
Super Hot VR
Space Pirate Trainer VR
Project Winter
Ziggurat
Crypt of the Necrodancer

--Plenty of other great games I've played, and even more in my library that I haven't gotten to yet, but I felt like all of the ones listed above don't always get the attention they deserve.