Furkiozknn is the GitHub account that publishes Hisar and the other games of its Claude Game Arena series, browser games with a Turkish setting that the README says are each built by a Claude model from one prompt. On itch.io the games appear under the name FurkiOzkan, and that page links back to the GitHub repository. No real name, location or team size is given.
A low-poly 3D tower defense on the Bosphorus: build archers, cannons and tar cauldrons along two roads and hold a seaside fortress for 15 waves. The README says Claude Opus 5.5 built it with Claude Code from one prompt.