Opus 5.5 builds a 3D horror game that mimics loved ones' voices in an hour
Using Opus 5.5 with three.js, Piper voices and Whisper speech recognition, the author built a 60-minute horror prototype where a masked monster calls at the door in your mother's voice.
OPUS 5.5 built me a 3D horror game in 60 minutes for $60, and it calls you in your mom's voice it is my game, a masked thing at grandma's door that copies the voice of anyone you love you live only by asking what the real person would know, and this is the stack to build yours tonight: 1. one rule first, never open to a voice you can't verify, the whole game hangs on it 2. Opus 5.5 builds the flat in three.js, one apartment, a flashlight, fog, nothing else, http://github.com/mrdoob/three.js 3.walking and walls without a physics engine, three-mesh-bvh has a ready player movement example 4.PS1 look, RetroPassNode ships with three.js, then grain and glitch on top with pmndrs/postprocessing 5. textures from Poly Haven, CC0, no credit needed, Opus 5.5 pulls them by name 6. monster, a photo of a mask i found, Tripo makes it a rigged GLB for free, glTF-Transform shrinks it for the browser 7. footsteps that come from behind you, howler.js does 3D spatial sound in a few lines 8. every character gets an LLM brain, one API key, one system prompt each, ai-town shows how to give them memory 9. voices run locally on Piper, under 1 second per line on my $10 server 10. the player answers out loud, whisper.cpp writes it down, ricky0123/vad knows when you stopped talking 11. hide family facts around the flat, the impostor only knows what you already said My bill, 30% of a 5-hour limit on a $100 Max plan, $50 API credit, $10 server the sober part, an hour buys a scary prototype with floating props, not a release - bonus, /plugin marketplace add anthropics/skills, and skill-creator turns this stack into your own horror skill