game-creator

Generate true pixel art sprites, tilesets, and animations with the Retro Diffusion API — the best dedicated pixel art model. Use when the user says "generate pixel art", "make a sprite with AI", "use Retro Diffusion", "rdpk", or wants high-quality pixel art faster than hand-coded sprite arrays. Requires a Retro Diffusion account and RETRODIFFUSION_API_KEY (paid credits). Great for quick prototyping of 2D Phaser games.

Add music and sound effects to a game using the Web Audio API — background music, gameplay themes, and SFX. Zero dependencies. Use when the user says "add music", "add sound effects", "add audio", "make it sound good", "add BGM", or "add SFX to my game". Do NOT use for gameplay features or visual design.

Audit and improve the visual design, polish, and player experience of an existing game. Use when the user says "make my game look better", "improve the design", "add polish", "add juice", "add particles", "fix the UI", or "make it more visually appealing". Do NOT use for gameplay logic changes (use add-feature instead).

Analyze a game, find what needs work, and implement the highest-impact improvements. Use when the user says "improve my game", "make my game better", "fix my game", "what's wrong with my game", or "polish my game". Run repeatedly — each pass finds the next most impactful thing to fix. Do NOT use for adding specific new features (use add-feature) or initial game creation (use viral-game for one-shot builds, make-game for milestone-driven projects).

Use when the user wants to design, scaffold, build, or iterate on a video game — including brainstorming new game ideas, planning a gameplay loop, choosing an engine, scaffolding a project, adding features, fixing gameplay bugs, or working on assets. Triggers on phrases like "make a game", "create a [genre] game", "build a [type] game", "I want to make a [genre]", or any session inside a game project directory (has docs/, src/, or an engine config).

Register your game on Play.fun (OpenGameProtocol), add the browser SDK, and get a monetized play.fun URL. Use when the user says "monetize my game", "add Play.fun", "add rewards", "register on Play.fun", or "get a play.fun URL". Requires Play.fun MCP server for game registration.

Record a high-FPS autonomous promo video of a Phaser game using Playwright. Triggers on: promo video, gameplay recording, marketing video, game capture.

Add Playwright QA tests to a game — visual regression, gameplay verification, and performance. Use when the user says "add tests", "test my game", "add QA", "check for bugs", or "add visual regression tests". Do NOT use for manual playtesting or gameplay design.

Rapidly scaffold and implement a playable game — no assets, design, audio, deploy, or monetize. Get something on screen fast. Use when the user says "quick game", "fast prototype", "just get something playable", or wants a game without the full pipeline. For the complete one-shot pipeline (deploy + monetize), use /viral-game instead. For a milestone-driven project, use /make-game. Do NOT use for production games.

Review an existing game codebase for architecture, performance, and best practices. Use when the user says "review my game", "code review", "check my game architecture", "is my game well structured", or "audit my game code". Do NOT use for making changes — this is read-only analysis. Use improve-game to implement fixes.

Add gateable features to an existing browser game — skin picker, continue-after-death, bonus mode, save slots, daily challenge. Monetization-agnostic scaffolding that leaves clean hooks for any paywall, subscription, or entitlement layer. Features are scaffolded at silver and gold tiers only (bronze is the default everyone gets). Use when the user says "add gateables", "scaffold monetizable features", "add skin picker", "add continue-after-death", "make my game monetizable", or "add premium hooks". Do NOT use for Play.fun SDK integration (use monetize-game) or generic gameplay features (use add-feature).

Three.js performance optimization patterns for draw calls, scene traversal, and instancing. Use when optimizing 3D scenes with 100+ repeated objects, thousands of moving entities, or draw calls above 500. Loaded by threejs-game, viral-game, and make-game for performance guidance.

Clone a game template from the gallery as a starting point. Use when the user says "use a template", "start from a template", "clone flappy-bird", "use the platformer template", or wants to quickly bootstrap a game from an existing example. Do NOT use for creating a game from scratch (use viral-game for one-shot builds or make-game for milestone-driven projects).

One-shot viral game pipeline — turn a tweet, news story, or short prompt into a scaffolded, designed, deployed, and monetized browser game in roughly 10 minutes. Use when the user says "make a viral game", "build a game from this tweet", "turn this story into a game", "/viral-game", or provides a tweet URL / short concept they want shipped end-to-end fast. Do NOT use when the user wants to design and build a real game project with milestones, ADRs, or multi-session iteration — use `/make-game` for that. Also do NOT use for modifying existing games (use `/add-feature` or `/improve-game`).

Add real-time or turn-based multiplayer to an existing browser game using PartyKit (Cloudflare Durable Objects). Scaffolds a room-based server, a NetworkManager client, EventBus events, GameState fields, Constants, and extends render_game_to_text(). Use when the user says "add multiplayer", "make this multiplayer", "add real-time co-op", "add online play", "scaffold multiplayer", or "add netcode". Do NOT use for solo leaderboards (use monetize-game), single-player AI opponents (use add-feature), or peer-to-peer/WebRTC games.

Build 3D browser games with Three.js using event-driven modular architecture. Use when creating a new 3D game, adding 3D game features, setting up Three.js scenes, or working on any Three.js game project.

3D asset engineer that finds, downloads, and integrates GLB/GLTF models into Three.js browser games. Use when a 3D game needs real models instead of primitive BoxGeometry/SphereGeometry shapes.

Generate photorealistic 3D worlds and environments with the World Labs Marble API — Gaussian Splat scenes from text prompts or reference images. Use when the user says "generate a 3D world", "create an environment", "make a 3D scene", or "use World Labs". Requires WLT_API_KEY environment variable.

Replace primitive 3D shapes with real GLB models — animated characters, world props, buildings, and scenery for Three.js games. Use when the user says "add 3D models", "replace the boxes with real models", "add GLB assets", or "make the 3D game look real". For 2D pixel art, use add-assets instead. Do NOT use for 2D pixel art (use add-assets) or gameplay changes (use add-feature).

Generate custom 3D models from text or images using Meshy AI, then auto-rig and animate them for Three.js games. The preferred source for all 3D game assets. Use when the user says "generate a 3D model", "create a character model", "use Meshy", or needs a custom GLB model that doesn't exist in free libraries.

Build 2D browser games with Phaser 3 using scene-based architecture and centralized state. Use when creating a new 2D game, adding 2D game features, working with Phaser, or building sprite-based web games.

Game asset engineer that creates pixel art sprites, animated characters, and visual entities for browser games. Use when a game needs better character art, enemy sprites, item visuals, or any upgrade from basic geometric shapes to recognizable pixel art.

Deploy browser games to here.now (default), GitHub Pages, or other hosting. Use when deploying a game, setting up hosting, or publishing a game build. Do NOT use for local development servers (use npm run dev).

Fetch tweet content directly from fxtwitter API. Use when given a tweet/X URL to extract the tweet text, author, media, and engagement stats without loading x.com.

Game architecture patterns and best practices for browser games. Use when designing game systems, planning architecture, structuring a game project, or making architectural decisions about game code.

Game audio engineer using Web Audio API for procedural music and sound effects in browser games. Zero dependencies. Use when adding music or SFX to a game.

Game UI/UX designer that analyzes and improves the visual polish, atmosphere, and player experience of browser games. Use when a game needs visual improvements, better backgrounds, particles, animations, screen transitions, juice/feel, or overall aesthetic upgrades.

Game QA testing with Playwright — visual regression, gameplay verification, performance, and accessibility for browser games. Use when writing or running game tests, debugging test failures, or building QA infrastructure. This is the reference skill — use qa-game for the user-facing command.

Replace geometric shapes with pixel art sprites — recognizable characters, enemies, and items with optional animation. Use when the user says "add sprites", "replace the shapes with real art", "add pixel art", "make the characters look real", or "add game assets". For 3D games, use add-3d-assets instead. Do NOT use for 3D models (use add-3d-assets) or gameplay changes (use add-feature).

Add a new gameplay feature to an existing browser game following its architecture patterns. Use when the user says "add a feature", "add double-jump", "add a power-up", "add a leaderboard", or describes a specific game mechanic to implement. Do NOT use for visual-only changes (use design-game) or replacing shapes with sprites (use add-assets).

Record an autonomous 50 FPS promo video of your game for social media. Use when the user says "record a video", "make a promo", "capture gameplay", "record gameplay footage", or "make a trailer for my game". Do NOT use for gameplay testing (use qa-game).