https://store.steampowered.com/app/1633860/Firebird/
Travel, experience Slavdom.

https://store.steampowered.com/app/3359280/Coolmath_Games_The_Game/
Be entranced by your childhood assuming your childhood included cool maths.

https://store.steampowered.com/app/1721180/Aberration_Analyst
Simple and oddly green looking, send people to solve mysteries, by the guy who did that Islamic content RPG which is also obscure.
https://store.steampowered.com/app/1845670/Islands_of_the_Caliph

https://store.steampowered.com/app/2200760/The_Bogtavern/
Travel around a swamp, you are a German, you have a boat.

https://store.steampowered.com/app/3229170/Egg_Squeeze/
Squeeze the eggs until you become a 7th dimensional psychic in real life.

https://store.steampowered.com/app/1388860/UNMEMORY/
Weird text based puzzle game.