Oh Schrödinger!

by Michael Denathorn (Dabzy)

You are the cat. Nothing inside a tomb is decided until you look - and the ghosts only move while you're not watching them. A Crashtober 2026 game jam entry.

Description

An Oh Mummy (Amstrad CPC, 1984) style maze game with a quantum twist. Walk all the way round a tomb to open it - its contents don't exist until that moment, and a half-traced tomb flickers between two possibilities until you finish observing it. Ghosts obey the quantum Zeno effect: watched, they freeze; turn your back and they come for you. Find the key and the kitten (alive... or a ghost?), then escape through the door.

Everything is drawn the CPC way - a 160x200 Mode 0 screen of chunky fat pixels in the CPC's 27-colour hardware palette, with sprites and a 5x7 font built from strings at start-up, and the instructions in the Amstrad CPC464 TrueType font. Built in BambooBasic and transpiled to JavaScript and WebGPU for the Crashtober 2026 BASIC game jam.

Genre

Maze arcade (Oh Mummy style)

Engine

2D "fat pixel" CPC Mode 0 renderer, string-built sprites and font, CPC464 TTF

Controls

Arrows / WASD move, hold Space to look behind you, Space / Enter in the menus, Esc back to the menu