Superliminal (previously Museum of Simulation Technology) is a 2019 surreal puzzle video game released by Pillow Castle Games. The game, played from a first-person perspective, incorporates gameplay elements around optical illusions and forced perspective; notably, certain objects when picked up can be moved towards or away from the player, but when placed back down, scale to the size as the player had viewed them, enabling the player to solve puzzles to complete the game.