Battle-test your AI prompting skills
Compete against developers worldwide in timed AI coding challenges. Get a PRD, fire up your favorite AI tool, and build. Your prompt game is the competition.
Featured Battles
View all →Regex Engine
Build a regex engine from scratch that supports matching, quantifiers, character classes, and grouping.
Static Site Generator
Build a static site generator that converts Markdown files into a themed HTML website with layouts, partials, and a dev server.
Drawing Canvas App
Build a browser-based drawing application with multiple tools, layers, color picking, and export functionality.
How it works
Pick a Battle
Browse challenges with PRDs of varying difficulty and time limits.
Prompt & Build
Use any AI coding tool — Claude Code, Cursor, Copilot — to build the project.
Submit & Compete
Your session is recorded and scored against the PRD requirements.
Ready to compete?
Test your AI prompting skills in timed coding battles against other developers.