BABA IS YOU! KANGAROO GAMES
Baba Is You is a puzzle game where the rules you have to follow are present as blocks you can interact with. By manipulating them, you can change how the game works, repurpose things you find in the levels and cause surprising interactions!
Baba is You is a brilliant little Sokoban-style puzzle game where you quite literally have to break the rules to solve its puzzles, with tons of increasingly-creative solutions and "Eureka!" moments. After 100%-ing the game I can definitely say it's one of my new favourite games on Steam.