5-Hour Vibecoding Penthouse Game Jam 2

One keyword. Five hours. One web game that plays on your phone and your laptop.

BioCraftEd's second vibecoding game jam is back in the same North Greenwich penthouse as Jam 1. It's small on purpose: 15 builders max, so there's real help in the room and every game gets played.

When: Saturday 21 November 2026, 12:00–20:00 (London)

Where: North Greenwich, London SE10 0GX. We'll send the exact building and door details to approved guests before the day.

Who: anyone 18+ who wants to make a game, from first-timers to seasoned devs. Come solo or as a team of up to 3. We'll help solos find a team at the start.

The rules

🌐 Web games only. If it runs in a browser with no install, it counts: plain HTML/JS, Phaser, Godot or Unity web export, PICO-8, anything.

📱 Must work on phone AND desktop. Judges play every entry on a touchscreen phone and on a laptop, so build touch controls and keyboard/mouse.

🔑 One keyword, revealed at kickoff. Use it as your theme, mechanic, setting or twist.

🤖 AI tools welcome. Vibecode away; just tell us what you used.

⏱️ Made during the jam. Keep your build under 25 MB so it loads on phones.

Schedule

12:00 doors open, registration, team forming

12:30 kickoff and keyword reveal

12:45–17:45 build (food provided mid-afternoon)

17:45 submissions close

17:45–19:30 judging and demos

19:30 awards · 20:00 close

Bring: your laptop and charger, a phone to test on, and headphones.

Prizes from ElevenLabs: everyone gets a free month of ElevenLabs Creator; the overall winning team gets ElevenLabs Pro for 3 months each; the Best Project Built with ElevenLabs gets ElevenLabs Scale for 3 months each.

Your game stays yours. If you'd like, you can opt in to have your game hosted on games.biocrafted.xyz as a Community game. You keep ownership, BioCraftEd hosts it under a non-exclusive licence, and you get 80% of any net revenue it earns there (BioCraftEd keeps 20%). You're free to publish it anywhere else too. Jam 1's winners are already playable at games.biocrafted.xyz.

Spaces: 15 participants. Registration needs approval, and there's a waitlist once we're full. If you can't make it, please cancel on Luma so someone on the waitlist can come.

Free to attend. 18+ only. Questions: [email protected] or Discord jam-2.