Sleepiness

What it is

Sleepiness is a 3D browser open-world game by celebiasalll, and its entry card says only "3d open world." The current mission is to collect coffee and deliver it to villagers, saving ten of them from turning into zombies. Before you start you choose one of two characters: Smith, a battle-hardened soldier, or Elric, an elite spec-ops agent built for speed. The controls include sprinting, crouching for stealth, attacking and firing, aiming, punching and kicking, and boarding a jet. It's a Vibe Jam 2026 entry; the jam requires at least 90% of the code to be written by AI, and the entry card doesn't name an AI tool.

Who it's for: Players who like open worlds and are curious how far an AI-written 3D prototype can go.

Before you start: It runs in the browser, and the entry card marks it as phone-friendly. The page is in English. The game has soldiers, guns, fistfights and zombies; we only saw the start screen, found no gore there, and can't promise there's none later. The page gives no license for the game and doesn't say whether there are ads or payments.

Based on the game page and the Vibe Jam listing. Not tested by AI Inspiration World.