What it is
Undersphere is a multiplayer shooter set on the inside of a spherical world, where you run, shoot and fight other players. It won the Unique Concept award at Vibe Jam. The jam description highlights its shifting gravity, and the homepage guide mentions using shotgun recoil to move around. It was made for Vibe Jam 2026, whose rules require at least 90% of the code to be written by AI, and the jam page lists Cursor as a tool used.
Who it's for: Keyboard-and-mouse shooter players who are up for getting used to an unusual sense of direction.
Before you start: Under Vibe Jam's rules it's free to play in the browser with no sign-up, using WASD and mouse. The homepage instructions are in English. The jam page doesn't list mobile support. The game includes gunfire and grenade explosions. The pages don't give an age rating.
Based on public information from Vibe Jam and the game's site. Not tested by AI Inspiration World.