Game Jam Karlsruhe

​Build a Game in a Day for the Chroma Awards 🎮

​You’ll make a playable game from scratch: your own idea, your own world, your own characters. AI does the heavy lifting, and you bring the idea and mechanics.

​What you’ll do

• ​Come up with a game idea, from a tiny arcade loop to an interactive story

• ​Build it with Rosebud, turning prompts into a playable browser game

• ​Generate characters, props and worlds as 3D models with Meshy

• ​Give it a voice with ElevenLabs: talking characters, sound effects, music

• ​Submit your game to the Chroma Awards Game Division

​Who it’s for
Everyone. You don’t need to be a game dev or a programmer. If you’ve never made a game, this is the perfect first one. Experienced devs will find plenty of room to go deeper.

​What’s provided

• ​Tool credits from ElevenLabs, Rosebud and Meshy

• ​Lunch, drinks and snacks all day

​Just bring a laptop and your ideas.

​How it works
Sign up individually and form teams of up to 4 on the day. Spend the day building, then give a quick teaser of your game. No slides, just play. Afterwards, everyone plays each other’s games while the jury picks the winners.

​Schedule

• ​09:30 - 10:00 Check-in & breakfast snacks

• ​10:00 - 10:30 Kick-off: welcome, tool intros, team formation

• ​10:30 - 13:00 Hacking

• ​13:00 - 14:00 Lunch

• ​14:00 - 17:00 Hacking

• ​17:00 Submission deadline

• ​17:15 - 18:00 Demo teasers: 3 minutes per team

• ​18:00 - 18:45 Open Arcade: play everyone’s games while the jury decides

• ​18:45 - 19:00 Awards 🏆

• ​19:00 Wrap-up, stick around and keep playing

​Prizes
🏆 #1 winner: Fast-tracked entry to the Chroma Awards. The winning team skips ahead to the semi-finalist round of the Chroma Awards when they submit their game.

​About The Sponsors

​Chroma Awards
The Chroma Awards is a creator-led competition for Film, Music Videos, Ads, and Games. Incubated by ElevenLabs, Season 2 features $200k+ in cash prizes across 6 tracks, and is open to submissions between October 19, 2026 and January 1, 2027. This event is hosted under the Chroma Awards umbrella and the #1 winner is fast-tracked to the semi-finals of their chosen submission category.

​ElevenLabs
ElevenLabs is an AI research and product company transforming how we interact with technology. The company builds three platforms: ElevenAgents for businesses deploying voice and chat agents at scale, ElevenCreative for creators and marketers generating and editing speech, music, images and video in 70+ languages, and ElevenAPI giving developers access to its audio AI models.

​Meshy
Where ideas take shape in 3D. Meshy helps 12M+ creators, developers, and studios turn a prompt or image into a detailed 3D model in minutes, ready for real-time engines, 3D printing, or product visualization.

​Rosebud AI
Rosebud AI Game Maker helps people turn ideas into playable games. Describe what you imagine, build it in your browser, and share it with others.

​Spots are limited, so grab yours now. 🕹️