Escher Plex

Escher Plex is a first-person puzzle game about gravity. Pick up the magnetic boots in the training room and any metal surface you walk into becomes the floor: walls, ceilings, the underside of a moving platform. The rooms only make sense once you stop caring which way is down.

The 2026 remake is built from scratch in three.js and TypeScript, with a gravity walker of its own (a capsule controller that carries its own up vector) instead of a physics engine with a fixed down. Nine rooms are in so far: Training, Upside Down, Stone Walls, The Pit, Air Shaft, Pillars, Escher's Relativity, where see-through portal arches carry your gravity from one surface to the next, Box in a Ball and Doors. Each has its own best-time leaderboard on playallday.games.

The levels are rebuilt as data, using the original Unreal maps as the reference, in a scene editor made for the job, so they can keep growing.

The original was my capstone project, made to challenge every level of player. You navigate a series of rooms, and to keep it a real challenge I let the player walk along any surface. That turned into an interesting mechanic and a fun one to design for. The game includes one of M.C. Escher's more famous ideas, an endless staircase, as well as moving walls and platforms.