GitHub (with program manager Lee Reilly) shows how GitHub Copilot CLI was used to build GH-Dungeons, a terminal roguelike generated from a repository’s latest SHA, turning typical repo problems like scope creep and merge conflicts into dungeon hazards.

Turning a codebase into an 80s dungeon crawler with Copilot CLI

GitHub program manager Lee Reilly uses GitHub Copilot CLI to build GH-Dungeons: a roguelike terminal game that treats a code repository like an old-school dungeon.

What gets built

• A terminal-based roguelike called GH-Dungeons
• The game is generated based on a repository’s latest SHA
• Players battle enemies like “scope creeps” and avoid traps like “merge conflict” hazards

How Copilot is used

• GitHub Copilot CLI is used as an AI assistant to help generate the project
• The idea presented is that an AI assistant can act like an “ultimate party of NPCs” to help you build something playful quickly

Try it

Try Copilot CLI here:

• https://github.com/features/copilot/cli?utm_source=social-youtube-build-a-game-cli-features-cta&utm_medium=social&utm_campaign=dev-pod-copilot-cli-2026

Links from GitHub

• YouTube: https://gh.io/subgithub
• Blog: https://github.blog
• X: https://twitter.com/github
• LinkedIn: https://linkedin.com/company/github
• Insider newsletter: https://resources.github.com/newsletter/
• Instagram: https://www.instagram.com/github
• TikTok: https://www.tiktok.com/@github
• GitHub: https://github.com