DEDUPEDAuthorization notice. universal-modder is dual-use. Only use it on software, sites and systems you own or have explicit permission to test.
Who it is forSolo modder who can code a little but cannot draw or make audio
The problemMod ideas stall because every new unit, item or sound needs original art that fits the game's format.
The outcomeA set of transparent sprites, rendered 3D headings or audio files sized and named to match the target game.
What you need first
- A coding agent such as Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot or OpenCode
- A PC game you own, run single-player or offline
- Git, Python 3.10+ and ffmpeg (uv recommended)
- A fal API key for generated art, 3D and audio (or a local ComfyUI server for images)
- Blender for 3D to sprite renders
- Windows games run natively or from WSL
Steps
- Create a fal API key and store it with
um fal key set. - Start your agent with FAL_KEY set, for example
export FAL_KEY="$(secret-tool lookup service fal.ai key api)"on Linux. - Ask the fal-assets skill for the asset, such as a unit rendered from 3D into 8 or 16 headings.
- Use the asset-pipeline skill to cut out, fit and pack frames into the sheet size the game expects.
Prompt for your agent
Use universal-modder's fal-assets and asset-pipeline skills to make <asset description> for <game>. Output engine-ready frames at <size> and show me the sheet.
Caveat. fal is a paid service billed to your key, and 3D to sprite rendering needs Blender installed.
About universal-modder
Skills that let a coding agent mod almost any PC game you own. Part of this week's top 10 repos: ranked #7 on Repo Radar. View rehan-remade/universal-modder on GitHub.
More with universal-modder
- Turn a finished mod into a reusable field note Record the engine, route, versions and gotchas of your mod and open a pull request so the next agent starts ahead.
- Add a custom weapon or boss to a game you own Describe a new item or boss in plain words and have the agent build it, with art, and test it in the running game.
- Cut a showcase video of your finished mod Record the game window with only game audio, pick the best moments and edit a styled clip.
- Find a game's engine and see if it was modded before Point the agent at a game folder to get the engine, version, modding route and any existing field notes.
- Put one game's content inside another game Port characters, vehicles or mechanics from one game into a second, like Minecraft mobs in GTA V.
- Port an existing mod to a newer game version or loader Move a mod from an old Minecraft version or loader to a new one without behavior drifting.
- Reverse engineer an unknown game file format Have the agent decode a proprietary asset or save format and prove it with a round trip.
Disclaimer
Deduped lists open-source repositories that belong to other people. We do not own, maintain, audit, or vouch for any of them, and a repo appearing here is not an endorsement or a safety check. The use cases, steps, and prompts are written by AI and may be incomplete, outdated, or just wrong. Where a use case is marked "Seen in the wild", we link to public posts where someone described something similar, but we have not verified those posts and the use case itself is still our AI's own write-up. Use all of this at your own risk. Only run code, commands, or agents on systems and accounts you are authorized to use, and read the code and every command before you run it, especially anything that touches credentials, files, or the network. Nothing here is professional, security, legal, or financial advice. All trademarks and project names belong to their respective owners, and their use here does not imply affiliation. Content is provided as is, without warranties of any kind. Found a mistake, a safety problem, or something you want removed? Email [email protected] and we will look at it promptly. Full disclaimer page