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 forEveryone. 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 worksSign 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 AwardsThe 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.

ElevenLabsElevenLabs 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.

MeshyWhere 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 AIRosebud 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. 🕹️