Kavach
Built at Google DeepMind Bangalore Hackathon · Jul 11, 2026 · Marathahalli, Marathahalli Main Road

Kahani is a browser-based adventure game where a player's one-line idea is expanded into a full "game bible": a mystery with 3 NPCs, 3 guarded clues, and fail states. The overworld is generated screen-by-screen using NB as the player walks: each screen is painted, then the image model traces borders over its own frame so a second pass can read both images into precise interactive hotspots (buildings, items, actions) — an infinite, seamlessly-stitched pixel-art world. Dialogue is voiced (Gemini TTS) and refereed live: rude or reckless choices raise a heat meter and can turn NPCs hostile, closing off clues. The run ends in either a victory finale (all 3 clues resolved) or a defeat finale (heat maxes out).