Third-party jam · Not run by Summer Engine
2026 Vibe Coding Game Jam (#vibejam)
Organized by Pieter Levels (@levelsio). Sponsored by Bolt.new and Cursor (@cursor_ai).
Start: . Deadline: (roughly one month to make your game).
Source: original X post
Entering with Summer Engine
Recommended setup for Vibe Jam: start a fresh project, choose Compatibility for the smoothest web path, and keep the game GDScript-only.
It's easy to make your game in Summer Engine. If you want a browser-playable jam entry, keep the project GDScript-only.
The short version: export the web build with the standard Godot editor, then host the generated files on your own domain or subdomain.
Cash prizes
- Gold: $20,000
- Silver: $10,000
- Bronze: $5,000
Rules (from the host)
- Anyone can enter with their game.
- At least 90% of code must be written by AI.
- Project must be started on or after the jam start; do not submit old games.
- Game must be on the web, free to play, with no login or signup. Own domain or subdomain is preferred.
- Multiplayer is preferred but not required.
- Any engine is allowed; Three.js is often recommended.
- Avoid heavy downloads and long loading: the game should be almost instantly playable (a username prompt is OK if you want it).
- Add the HTML snippet on the Google Form (as instructed there) so you show up as an entrant.
- One entry per person — focus on one strong game.
Suggested tools
Host suggests Cursor Composer 3 and Bolt.new as fast, affordable options that work well with Three.js and games.
Jury
Pieter Levels (@levelsio), @s13k_, plus additional game dev and AI people the host invites. Check the host's post for the latest list.
Web export guide for Summer Engine
This jam needs a browser build. Here is the clearest path today if you want to make the game in Summer Engine and submit it to Vibe Jam:
- Use GDScript for a web-eligible project. In Godot 4, the .NET / C# editor build cannot export to Web (upstream limitation). A GDScript-only game fits the normal Web export pipeline.
- Export with the standard Godot 4 "vanilla" editor when producing the HTML/WASM/web assets. Your scenes and GDScript are the same project files; you use the non-.NET editor only for the Web export step until Summer streamlines this.
- Host the export output (HTML + wasm + pck/data) on HTTPS (your domain or subdomain, or static hosting). We'll publish a step-by-step hosting guide after we validate the flow on summerengine.com.
If anything here conflicts with the official form, the Google Form and host post win.
Need help exporting?
When you're ready to export, it usually takes about 5-10 minutes. If you get stuck, DM @mathias-heide on Discord or email founders@summerengine.com.P.S. I'm joining too and making a game.
Disclaimer: Summer Engine is not hosting or organizing this jam. The Vibe Coding Game Jam is run by Pieter Levels / levelsio with sponsors including Cursor and Bolt.new. We're linking it here because you can make your game in Summer Engine and submit it through the official form above. For the canonical announcement, see the original X post.