Use phones as controllers for a big-screen game
Intermediate14h2–3
Socket.IOPhaserQR codes
19/20Solve puzzles together where each player sees different clues.
Build Co-op Online Escape Room for friends and remote teams in ~18h with 2–3 people. Stack: Colyseus + Phaser + Node.js.
Why it wins: Multiplayer design that forces teamwork.
| Tech | Role | |
|---|---|---|
| Colyseus | Multiplayer game server | Backend |
| Phaser | Game engine | Game |
| Node.js | Backend runtime | Backend |
Open-source projects you can build on. Links checked 2026-10-31.
Use phones as controllers for a big-screen game
Practise typing real code snippets against friends
Draw shapes that become physical objects to guide a ball to the goal