Genre Lore
Pure problem solving, from falling blocks to physics contraptions to logic grids. The best ones teach a rule, then ask what else it can do.
The Essentials

As the lone survivor of a passenger jet crash, you find yourself in a mysterious forest battling to stay alive against a society of cannibalistic mutants. Build, explore, survive in this terrifying first person survival horror simulator.

The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!

Change It Up
UNDERTALE! The RPG game where you don't have to destroy anyone.