Submissions open from 2025-12-14 05:00:01 to 2025-12-21 04:59:59
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Build a programming language and then make a game using it 


The homepage for the jam is at https://langjamgamejam.com

Langjam Gamejam is a 7-day challenge to create a programming language and then use that language to build a game. You set the rules. Be as creative as possible, use any technologies you want, and have fun. There will be prizes to the most creative submissions!

  • The hackathon runs for 7 days
  • You must design and implement a programming language
  • The must design and implement a game using your language
  • You can use any language, engine, libraries, and technologies
  • You define what a programming language is and what a game is
  • Work solo or on a team
  • Documentation and instructions are encouraged
  • Bonus points: Write a blog post about your language, game, and design process