Guided 2D Game / vertical slice
A guided product Buildprint, not a game, engine, skill or asset-generation plugin. It turns a broad idea into an agreed small original pixel game and provides operational art, animation, world and release contracts. Brawler guidance is detailed; platformer, farming and puzzle branches adapt the same spine.
Start at BUILDPRINT.md. Intake asks sequential questions, then the builder proves a graybox and in-game art direction before scaling content. Default spend is zero. Multiplayer and public hosting are explicit scope decisions, not implied features.
Packet map
00-goal.md: guided intake, large-vision warning, exclusions and decisions.01-setup.md,02-identity.md: existing-tool/license preflight and readable pixel identity.loops/: five kernel loops from graybox to frozen release review.references/: genre, animation, world/tiles, provider recovery and operational QA.templates/: compact agreements, asset requests, money recovery and milestone handover evidence.validation/: original dependency-free Node/browser contract module, PNG decoder, loader adapter, fixture manifest and negative tests. This is a bounded starter validator, not a universal collision engine.
Check this repository packet
From the repository root, Node.js 20+:
node bin/agb.js packet check buildprints/guided-2d-game
npm run check:guided-2d-game
The second command also decodes the fixture PNG, validates the loaded manifest and runs negative tests. See validation/README.md for runtime integration and coverage limits. Do not treat synthetic fixture art as approved game art or fixture tests as a playthrough.
Start from the published packet
Use the latest repository CLI until a release includes byte-exact binary snapshot downloading; older installed AGB versions can corrupt the bundled PNG fixture. No global install is needed:
git clone https://github.com/DomEscobar/agent-buildprint
node agent-buildprint/bin/agb.js start https://agent-buildprint.com/buildprints/guided-2d-game/package.json my-game
Then give my-game/.buildprint/next-agent.md to the builder. The repository’s check:guided-2d-game also bootstraps this actual packet, compares all 33 snapshot files byte-for-byte, and validates the downloaded PNG.
Claim ceiling
No game was built, no paid generation performed, no provider plugin installed and no browser/game deployment certified by this packet. Public provider docs were inspected on 2026-09-07; volatile catalogs and protected setup must be rechecked before use. media4agents’ public API details could not be verified; that route is conditional. Independent runtime review is required before qualifying an applied game. No third-party scripts or proprietary game assets are bundled.