One player in a werewolf-style game is secretly an AI
Intermediate16h2–3
LLMSocket.IONext.js
18/20Phones as Game Controllers
Use phones as controllers for a big-screen game.
Intermediate14h2–3 people19/20 fit
Build Phones as Game Controllers for party and classroom gamers in ~14h with 2–3 people. Stack: Socket.IO + Phaser + QR codes.
Why it wins: Crowd-pleasing demo.
Build flow
01 · Problem
Local multiplayer needs expensive controllers.
02 · Solution
Players scan a QR, phones become controllers over WebSockets and the big screen runs the game.
03 · Build
- 1Set up sockets
- 2Build controller page
- 3Build game
- 4Optimise latency
04 · Demo
Ten audience members control a game together.
MVP checklist
- QR join
- Phone controls
- Big-screen game
- Low latency
Tech stack
| Tech | Role | |
|---|---|---|
| Socket.IO | Realtime multiplayer | Backend |
| Phaser | Game engine | Game |
| QR codes | QR codes | Device |
Reference repos
Open-source projects you can build on. Links checked 2026-10-31.
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