HEIST

Sneak in. Grab it. Vanish.

HEIST is a one-button stealth puzzle game. Slip past patrol robots, sweeping cameras and lasers, crack the vault, and get out with every gem.

How to play (one button: Space / click / tap)

• Tap — step in the direction the target pad is pointing. The pad rotates through the open directions around you.
• Hold — plant your beacon. Hold again later to teleport back to it, facing the way you planted it. Hold while standing on it to pick it up.

Mechanics

• Pressure plates, red/blue switch walls, clock gates, keycards and vault doors
• Patrol robots and security cameras that lock on and call for backup — hide in the grass
• Static and moving lasers, plus a power switch that swaps which beams are live
• Robots and lasers destroy your beacon — and switch walls can trap a robot

14 floors plus training. Every new mechanic gets a short skippable tutorial first (replay it any time from the floor select). The last floor uses everything.

Credits

Game concept, level design, art direction, playtesting and the tuning of every level: Huang Jiahao.

AI usage declaration

Generative AI was used in making this game:

• Claude (Anthropic) — wrote the game code (rendering, robot AI, collision, UI), the procedurally generated music and sound effects (Web Audio), all following my design direction.
• ChatGPT image generation (OpenAI) — generated the sprites, tiles, UI art, logo and cover from my art briefs.

I designed the mechanics and levels, directed the art and audio, and personally playtested and adjusted the details of every level.