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Every stack in AI Game Builder is powered by a hand-tuned instructions + knowledge prompt pair. Buy the exact pair for a stack and run it yourself — in Claude, the API, or any AI coding tool — unlimited times, no per-run fee to us.
A complete 2D browser game in pure HTML5 Canvas and vanilla JavaScript — game loop, sprites, input, collision, audio, scenes and HUD. No engine, no framework, no build step. Optional PHP backend for highscores and cloud saves, delivered ready to drop on any host.
A complete 2D game on Phaser 3 — scenes, arcade physics, tilemaps, sprites, animations, particles and sound, wired the way the engine expects. Loaded from CDN, no build step, runs from any static host. Optional PHP backend for highscores and cloud saves.
A complete 3D browser game on Three.js — scene, camera, lighting, meshes, a fixed-step game loop, collision, first or third person controls and sound. Loaded from CDN via import map, no build step, runs from any static host. Optional PHP backend for highscores and cloud saves.
Get a .zip with the instructions file, the knowledge file, and a plain-language setup guide.
Instructions → Custom instructions. Knowledge → Project knowledge upload. Takes under a minute.
Instructions as the system param, knowledge in your first message — works in any script or agent.
Start a chat and describe what you want built. Reuse the same pack for as many apps as you like.