Everything Game Dev Code alternatives

77 game-dev skills for coding agents, with an engine router.

• Best for: Developers using an AI coding agent who want engine-specific guidance loaded automatically for the engine their project uses
• Pricing: Free and open source (Apache-2.0); you use it with your own coding agent
• Export: Skills are plain Markdown folders copied into your agent's skills directory; the code they help write is yours
• Watch out for: Each skill is pinned to a stated engine version (for example Godot 4.7, Unity 6.3 LTS, Unreal Engine 5.8), so guidance can fall out of date for projects on other versions

Blender workflow skills for AI coding agents.

• Best for: Developers who use Claude Code, Codex or Cursor with Blender and want agents to follow game-ready modeling, baking, rigging and export steps
• Pricing: Free and open source (MIT); you need Blender 5.2 or later and your own AI coding agent
• Export: Its export skill covers Roblox, Unity, Unreal, Godot, web and USD targets, per the README; the work stays in your own Blender files
• Watch out for: It targets Blender 5.2 or later only, and the project is new: the first version is dated October 14, 2026, in its changelog.

Claude Code skill for rigged 3D game assets in Blender.

• Best for: Developers who use Claude Code and want concept art or model sheets turned into measured, game-ready 3D models in Blender
• Pricing: Free and open source (MIT); needs Claude Code and Blender 4.2 or newer
• Export: Exports GLB, glTF or FBX with asset-manifest.json and animation-contract.json, then re-imports the file to check it, according to the README
• Watch out for: Only Claude Code has been tested, according to the README, and the agent writes and runs Blender Python build scripts phase by phase, stopping for your approval at each gate unless you tell it not to ask

Starter kit that sets up game projects for Claude Code.

• Best for: Developers who want Claude Code to build, test and check a game project the same way on whichever engine they pick
• Pricing: Free and open source (MIT), as of November 2026; you need your own Claude Code access
• Export: Projects you make are yours: the kit adds no license or credit line unless your profile sets one, per the README. The bundled example games are all rights reserved
• Watch out for: Most testing was done on Windows 11, and the RPG Maker MZ support has never been run in the engine, per the README's own test table

Claude Code template with 49 agents run like a game studio.

• Best for: Solo developers using Claude Code who want design docs, reviews and QA steps built into their game project
• Pricing: Free and open source (MIT); you need your own Claude Code access
• Export: It is a template you clone into your own game repo, so everything it writes (code, docs, assets) stays in your project
• Watch out for: Built for Claude Code only, and by default it is deliberately not autonomous: agents ask questions and wait for your approval before writing files, according to the README (its guided and autonomous automation settings reduce those prompts)

Agent skills that build game VFX for Godot and Unity.

• Best for: Godot or Unity developers who want a coding agent to draft, build and review particle effects such as projectiles, impacts and beams
• Pricing: Free and open source (MIT) as of November 2026; video and image models you use with it are billed by their own providers
• Export: Effects are saved as Effekseer .efkefc sources and .efk runtime files with a manifest; the README says the effects, textures and flipbooks you make are yours
• Watch out for: Building and rendering effects is verified only on Apple silicon Macs and Windows x64, per the README; Linux is verified for authoring only, and the review step needs a windowed Godot (no headless Linux capture)

Audits game balance with simulated bots and exact odds.

• Best for: Designers of free-to-play, premium puzzle or tabletop games who want numbers on difficulty, fairness or monetization instead of opinions
• Pricing: Free and open source (MIT), as of November 2026
• Export: Everything is written to a balance-audit/ folder in your project, including a simulator you can re-run; the skill never edits the game's own files, per the README
• Watch out for: The README says it handles real-time, physics-driven and deep strategy games poorly, and that its bots don't behave like real players, so absolute numbers need checking against analytics or playtests

LittleJS engine kit and plugin for building games with AI.

• Best for: People using Claude Code, Codex, Cursor or Copilot to make small HTML5 browser games without building an engine first
• Pricing: Free and open source (MIT); you use it with your own coding agent
• Export: Games are plain HTML and JavaScript that run from file://; an optional build script makes a single index.html and a .zip
• Watch out for: Tied to the LittleJS engine and HTML5 output, so it does not help with Unity, Godot or Unreal projects

Pixel art effects written as code, with a Claude Code skill.

• Best for: Pixel art game developers who want ready-made effects they can recolor, export or extend with Claude Code
• Pricing: Free and open source (MIT) as of November 2026; the skill runs in Claude Code, which needs the user's own Claude plan or API access
• Export: Effects run as dependency-free JavaScript in browser games, or render to transparent PNG sprite sheets with Aseprite-style JSON for engines such as Godot, Unity, GameMaker, Defold, LÖVE and Bevy; MIT license allows commercial use
• Watch out for: Glow is baked into exported sprite sheets as color with alpha, which reads well over dark scenes; for bright scenes the skill's own instructions say to render a recolored version or keep the effect on a dark layer

40 Claude Code skills for planning and building Roblox games.

• Best for: Roblox creators using Claude Code with the Roblox Studio MCP who want the agent to plan, build and playtest a game in small steps
• Pricing: Free and open source (MIT) as of November 2026; you need your own Claude Code access
• Export: Skills are plain SKILL.md files you clone into your project; your game's Luau code stays in your Roblox experience, and the README says it is free for personal and commercial projects
• Watch out for: All six commits were made on July 1, 2026, the day the repository was created, and there have been none since, so the skills may not reflect later changes to Roblox, the Studio MCP or Claude Code

Claude Code skills built from the Unity 6.3 LTS docs.

• Best for: Unity 6 developers who use Claude Code and want it to follow current Unity APIs and avoid common Unity coding mistakes
• Pricing: Free and open source (MIT), as of November 2026
• Export: Not applicable: the skills only guide Claude Code; any code it writes lives in your own Unity project
• Watch out for: The content is a snapshot of the Unity 6.3 LTS documentation as of March 2026; the README describes updating it as a manual process of re-reading Unity's docs and editing the skill files

A coding agent builds, runs and checks a game unattended.

• Best for: Developers who want a coding agent to build and check a complete Godot, Bevy or browser game from a written description
• Pricing: Free and open source (MIT); you pay for your own Claude Code or Codex use and any optional paid asset APIs
• Export: The result is an ordinary game repository and engine project on your own machine, which you keep and can keep developing
• Watch out for: Free local asset generation needs an NVIDIA GPU plus a long list of system tools, and the README says it is tested only on Ubuntu, Debian and macOS

Turn one character image into 2D sprite sheets and loops.

• Best for: 2D developers who use Codex or Claude Code and want consistent, transparent sprite sheets from a single character image
• Pricing: Free and open source (Apache-2.0); image and video generation run on your own ChatGPT, SuperGrok or API account
• Export: Outputs are local PNG atlases with a manifest.json frame layout, plus Aseprite JSON export for Phaser and Flame, according to the README
• Watch out for: It doesn't include an image model: generation needs your own Codex (ChatGPT) login, Grok login or an API key, and API-key calls are billed per call