Overview
game-developer is an open-source frontend skill for Claude Code and compatible agents, published by Jeffallan. Its author describes it as: “Use when building game systems, implementing Unity/Unreal Engine features, or optimizing game performance. Invoke to implement ECS architecture, configure physics systems and colliders, set up multiplayer networking w…”. The project has 11k stars on GitHub and is available under the MIT license. Add it to your setup with `/plugin marketplace add Jeffallan/claude-skills`.
What game-developer does
1. **Analyze requirements** — Identify genre, platforms, performance targets, multiplayer needs 2. **Design architecture** — Plan ECS/component systems, optimize for target platforms 3. **Implement** — Build core mechanics, graphics, physics, AI, networking 4. **Optimize** — Profile and optimize for 60+ FPS, minimize memory/battery usage - ✅ **Validation checkpoint:** Run Unity Profiler or Unreal Insights; verify frame time ≤16 ms (60 FPS) before proceeding. Identify and resolve CPU/GPU bottlenecks iteratively. 5. **Test** — Cross-platform testing, performance validation, multiplayer stress te…
What’s inside
The SKILL.md for game-developer is organised into these sections:
- Core Workflow
- Reference Guide
- Constraints
- MUST DO
- MUST NOT DO
- Output Templates
- Key Code Patterns
- Object Pooling (Unity C#)
- Component Caching (Unity C#)
- State Machine (Unity C#)
Installation
Add game-developer to your agent with:
/plugin marketplace add Jeffallan/claude-skillsReview a skill’s source before installing it — skills can instruct your agent to run commands. This command comes from the skill’s public repository, which is the source of truth for setup steps. New to skills? Read how to install Claude Code skills.
Supported agents
- Claude Code — ships a claude code plugin marketplace
License
game-developer is published under the MIT license.
Strengths
- Clear MIT license — safe to read and adapt within its terms
- Ships in Jeffallan/claude-skills, an established project with 11,060 GitHub stars
- Works with Claude Code
- Actively maintained — repository updated in the last 90 days
Author
Topics
Frequently asked questions
- What does game-developer do?
- Use when building game systems, implementing Unity/Unreal Engine features, or optimizing game performance. Invoke to implement ECS architecture, configure physics systems and colliders, set up multiplayer networking with lag compensation, optimize frame rates to 60+ FPS targets, develop shaders, or apply game design patterns such as object pooling and state machines. Trigger keywords: Unity, Unreal Engine, game development, ECS architecture, game physics, multiplayer networking, game optimization, shader programming, game AI.
- How do I install game-developer?
- Run /plugin marketplace add Jeffallan/claude-skills in your agent, then reload your skills. Review the source at https://github.com/Jeffallan/claude-skills before installing.
- Is game-developer free to use?
- Yes. game-developer is free and open source under the MIT license, so you can read, run, and adapt it within that license's terms.
- Which agents does game-developer work with?
- game-developer lists Claude Code — named in its SKILL.md, its plugin marketplace or its repository topics. Skills use the portable SKILL.md format, so other agents that read that format may load it too.
- Where does game-developer come from?
- game-developer ships inside Jeffallan/claude-skills, a repository that contains 41 catalogued skills in total. The repository's 11,060 GitHub stars apply to that whole collection, not to this skill on its own.