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: studio@biocrafted.xyz or Discord #jam-2.