Whiplash GunZ - 20年前のオンラインゲームがブラウザでプレイ可能に！

A browser port of "GunZ: The Duel," an online TPS exclusive to Windows released in 2003.

Ranked 1st on a Korean technology sharing site. Ranked 2nd on Japan's technology sharing site Qiita.

Porting a commercial game from 20 years ago to a browser with Claude Code with almost no rewriting of the original code
https://qiita.com/LostMyCode/items/7597edb999821efd2d8b

By making almost no changes to the existing source code and having AI handle 99% of the newly required implementations, what would normally be an overwhelming task requiring years of development was realized in just about 3 weeks.