Superliminal

Superliminal is a first-person puzzle game built around a single unusual rule: an object becomes whatever size it appears to be from your perspective at the moment you let go of it. Grab a chess piece held at arm's length and release it close to the camera and it lands as a refrigerator; do the inverse and it shrinks. The whole game is structured around what that rule lets you, and the level designers, do.

The framing is a dream-therapy programme. After dozing off at 3am to an infomercial for Dr Pierce's Somnasculpt, you wake up inside the experimental treatment itself, with Pierce's recorded voice guiding you toward an exit while his AI assistant has its own, less helpful agenda. The dreamscape unravels in stages — clean hotel hallways early on, increasingly abstract architecture later — and the puzzles get steadily more willing to break their own rules.

The Pillow Castle team layered extras over the campaign after launch. Developer commentary runs throughout the game with notes on construction and history; a Challenge Mode scores each level on time, grabs and jumps and was added in response to the speedrunning community that latched onto the game; and experimental Steam Workshop support lets you import arbitrary 3D objects to mess with under the perspective system.