The-talos-principle -

: Completing levels rewards you with tetromino-shaped sigils . These aren't just collectibles; you must fit them into rectangular grids to "unlock" new tools and game areas. Narrative & Immersive Features

: A significant part of the story is told through computer terminals where you can read logs and engage in philosophical debates with an AI named Milton. the-talos-principle

: You can find QR codes left by other "iterations" of robots who attempted the puzzles before you, providing hints or existential commentary. : Completing levels rewards you with tetromino-shaped sigils