Use when building game systems, implementing Unity/Unreal features, or optimizing game performance. Invoke for Unity, Unreal, game patterns, ECS, physics, networking, performance optimization.
Install
npx skills add Jeffallan/claude-skills --skill game-developernpx skills add Jeffallan/claude-skills --skill game-developer -a claude-code -gnpx skills add Jeffallan/claude-skills --skill game-developer -a codex -ggemini skills install https://github.com/Jeffallan/claude-skills.git --path skills/game-developergh skill install Jeffallan/claude-skills game-developergit clone --depth 1 https://github.com/Jeffallan/claude-skills /tmp/Jeffallan__claude-skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/Jeffallan__claude-skills/skills/game-developer ~/.claude/skills/game-developer # Claude Code
cp -R /tmp/Jeffallan__claude-skills/skills/game-developer ~/.agents/skills/game-developer # Codex, Cursor, Gemini CLI, Copilot, OpenCode