MentorHub Gaming is the name on the Kitchen Siege page (“A MentorHub Gaming kitchen”), which links to mentor-hub.space. The game was presented on Reddit by u/GabrielNunes12, who describes building it in the first person.
A browser co-op FPS in which up to four chefs hold a kitchen for ten rounds and cook what the waves drop between shootouts. The developer says Claude built the whole game in Claude Code.