Comprehensive game design theory covering MDA framework, player psychology, balance principles, and progression systems. Master why games are fun.
Install
npx skills add pluginagentmarketplace/custom-plugin-game-developer --skill game-design-theorynpx skills add pluginagentmarketplace/custom-plugin-game-developer --skill game-design-theory -a claude-code -gnpx skills add pluginagentmarketplace/custom-plugin-game-developer --skill game-design-theory -a codex -ggemini skills install https://github.com/pluginagentmarketplace/custom-plugin-game-developer.git --path skills/game-design-theorygh skill install pluginagentmarketplace/custom-plugin-game-developer game-design-theorygit clone --depth 1 https://github.com/pluginagentmarketplace/custom-plugin-game-developer /tmp/pluginagentmarketplace__custom-plugin-game-developer
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/pluginagentmarketplace__custom-plugin-game-developer/skills/game-design-theory ~/.claude/skills/game-design-theory # Claude Code
cp -R /tmp/pluginagentmarketplace__custom-plugin-game-developer/skills/game-design-theory ~/.agents/skills/game-design-theory # Codex, Cursor, Gemini CLI, Copilot, OpenCode