Game Developer
Jeffallan/claude-skills
Covers game programming in Unity and Unreal Engine: ECS design, physics, multiplayer networking, shaders and profiling toward a 60 FPS target.
Build Unity games with optimized C scripts, efficient rendering, and proper asset management.
Install Unity Developer
$ npx skills add aiskillstore/marketplace --skill unity-developer -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace unity-developer --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sickn33/unity-developer .claude/skills/unity-developer && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "unity-developer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/unity-developer into .claude/skills/unity-developer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-developer", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/unity-developerType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add aiskillstore/marketplace --skill unity-developer -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace unity-developer --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sickn33/unity-developer .agents/skills/unity-developer && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "unity-developer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/unity-developer into .agents/skills/unity-developer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-developer", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill unity-developer -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace unity-developer --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sickn33/unity-developer .cursor/skills/unity-developer && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "unity-developer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/unity-developer into .cursor/skills/unity-developer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-developer", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/aiskillstore/marketplace.git --path skills/sickn33/unity-developer--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add aiskillstore/marketplace --skill unity-developer -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace unity-developer --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sickn33/unity-developer .gemini/skills/unity-developer && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "unity-developer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/unity-developer into .gemini/skills/unity-developer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-developer", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install aiskillstore/marketplace unity-developerInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add aiskillstore/marketplace --skill unity-developer -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sickn33/unity-developer .github/skills/unity-developer && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "unity-developer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/unity-developer into .github/skills/unity-developer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-developer", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add aiskillstore/marketplace --skill unity-developer -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace unity-developer --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sickn33/unity-developer .opencode/skills/unity-developer && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "unity-developer" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/sickn33/unity-developer into .opencode/skills/unity-developer/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "unity-developer", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
unity-developer- GitHub stars
- 430
- Used in
- 6 other repos
- Token cost
- ~2.7k tokens
- SKILL.md length
- 1,228 words
- Files
- 2
- Skills in repo
- 1,085
- Repo updated
- First seen
- Licence
- None found
At a glance
Build Unity games with optimized C scripts, efficient rendering, and proper asset management.
- Works in 8 steps: Analyze requirements for optimal Unity… → Recommend performance-optimized… → Provide production-ready C# code with… → …
- Tasks that involve Game development
- SKILL.md covers Use this skill when, Do not use this skill when, Instructions and Purpose, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Unity Developer is an agent skill from aiskillstore/marketplace. Build Unity games with optimized C scripts, efficient rendering, and proper asset management. Masters Unity 6 LTS, URP/HDRP pipelines, and cross-platform deployment. Handles gameplay systems, UI implementation, and platform optimization. Use PROACTIVELY for Unity performance issues, game mechanics, or cross-platform builds.
Its SKILL.md is about 2.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).
It sits in Game Development, covering Game development, Game design and Shaders. It works with C#. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Tasks that involve Game development
- Tasks that involve Game design
- Tasks that involve Shaders
Example prompts
- “/unity-developer”
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
- Analyze requirements for optimal Unity architecture and pipeline choice
- Recommend performance-optimized solutions using modern Unity features
- Provide production-ready C# code with proper error handling and logging
- Include cross-platform considerations and platform-specific optimizations
- Consider scalability for team development and project growth
- Implement comprehensive testing strategies for quality assurance
- Address memory management and performance implications
- Plan deployment strategies for target platforms and stores
What it can do on your machine
Read from SKILL.md and the folder at commit 4ac52da. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Unity Developer loads about 2.7k tokens when it runs. Until then it costs about 86 tokens; SKILL.md has 1,228 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 1,228 words (~2,717 tokens).
“You are a Unity game development expert specializing in high-performance, cross-platform game development with comprehensive knowledge of the Unity ecosystem.”
- name
- unity-developer
- metadata.model
- opus
Files
SKILL.md and 1 other file in skills/sickn33/unity-developer of aiskillstore/marketplace.
- SKILL.md
- skill-report.json
Open the folder on GitHubat commit 4ac52da
Used in 6 other repositories
We found 19 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 6 other GitHub owners. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
- sickn33/agentic-awesome-skillsskills/unity-developerplugins/agentic-awesome-skills/skills/unity-developer+2 more
- rmyndharis/antigravity-skillsskills/unity-developer
- agent-skills-hub/agent-skills-hubskills/unity-developer
- lingxling/awesome-skills-cnantigravity-awesome-skills/skills/unity-developerantigravity-awesome-skills/plugins/agentic-awesome-skills/skills/unity-developer+2 more
- benjaminasterA/antigravity-awesome-skillsskills/unity-developer
- henryalouf/ruflow.agents/skills/unity-developer.agents/skills/antigravity-awesome-skills/skills/unity-developer+6 more
Compare with similar skills
Unity Developer next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Unity Developer this skillaiskillstore/marketplace | 430 | 6 repos | ~2.7k | Automated safety check: Pass | None | |
| Game DeveloperJeffallan/claude-skills | 12k | — | ~1.5k | Automated safety check: Pass | MIT | |
| Godot Camera Systemsjame581/GodotPrompter | 792 | — | ~2.8k | Automated safety check: Pass | MIT | |
| Gdscript Advancedjame581/GodotPrompter | 792 | — | ~3.4k | Automated safety check: Pass | MIT | |
| Godot Genre Battle Royalethedivergentai/GD-Agentic-Skills | 803 | — | ~3.9k | Automated safety check: Pass | LGPL-3.0 | |
| Godot Gdscript Patterns925236118/AlphaAgent | 103 | 9 repos | ~5k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Unity Developer
What does Unity Developer do?
Build Unity games with optimized C scripts, efficient rendering, and proper asset management. Unity Developer is an agent skill from aiskillstore/marketplace. Build Unity games with optimized C scripts, efficient rendering, and proper asset management.
When should I use Unity Developer?
Unity Developer fits situations like: tasks that involve Game development; tasks that involve Game design; tasks that involve Shaders.
How do I install Unity Developer in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill unity-developer -a claude-code`. Or copy the skill folder (skills/sickn33/unity-developer in aiskillstore/marketplace) into .claude/skills/unity-developer in your project. Claude Code loads it when a task matches its description.
How do I install Unity Developer in Codex?
Run `npx skills add aiskillstore/marketplace --skill unity-developer -a codex`. Or copy the skill folder (skills/sickn33/unity-developer in aiskillstore/marketplace) into .agents/skills/unity-developer in your project. Codex loads it when a task matches its description.
Can I use Unity Developer in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill unity-developer -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/unity-developer, .gemini/skills/unity-developer, .github/skills/unity-developer and .opencode/skills/unity-developer in your project.
What does Unity Developer need to run?
SKILL.md names no scripts, command-line tools or credentials: Unity Developer is instructions for the agent only.
Does Unity Developer access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Unity Developer safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Unity Developer use?
No licence was found for Unity Developer or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Unity Developer use?
About 2.7k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Unity Developer?
Skills that share tags, products or a category with Unity Developer: Game Developer (Jeffallan/claude-skills, 12k stars), Godot Camera Systems (jame581/GodotPrompter, 792 stars), Gdscript Advanced (jame581/GodotPrompter, 792 stars) and Godot Genre Battle Royale (thedivergentai/GD-Agentic-Skills, 803 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Unity Developer?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,085 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.