feel like giving vidya recommendations so here's a dump of titles
if you're a weirdo like me you probably know a bunch of these. no hard criteria other than game's good, and if weird then hopefully possible to appreciate within first session.
handle proprietrary software (like all of this) at your own discretion

Strategy
- Dominions 5
- Sid Meier's Alpha Centauri
- Endless Legend
- Master of Magic
- Blood Bowl
- DEFCON
- Rise to Ruins

Story heavy
- Grim Fandango
- Planescape: Torment
- The Void
- Return of the Obra Dinn

RPG / Stat porn
- Ultima Underworld
- The Age of Decadence
- Siralim Ultimate
- Brigand Oaxaca
- Serpent in the Staglands

Plain weird shit
- Amazing Cultivation Simulator
- Way of the Samurai 4
- Zeno Clash
- E.Y.E. Divine Cybermancy

Straight action
- Nuclear Throne
- Magicka
- Luftrausers

Rogueli[tk]e
- Cogmind
- Infra Arcana
- FTL: Faster Than Light
- Dungeon of the Endless
- Duskers
- Into the Breach
- NEO Scavenger

Other
- Cave Story
- Vintage Story
- VVVVVV
- Jalopy
- Exanima