canyoumod. GitHub
All games
THE FACTORIO FIELD GUIDE

Can you mod
Factorio?

Short answer (Moddable offline): Yes. Factorio (Custom C++ / Lua API) is a good offline starting point for universal-modder with Claude Code. Build a small Lua data mod and test it in a fresh local map.

Last reviewed · A source-based starting point for universal-modder and Claude Code. Check your exact PC edition and game version before you begin.

YOUR GAME, DECODED

Factorio

Custom C++ / Lua API · PC / offline assessment

Moddable offline

Yes. Start with the right tools.

  • The developer exposes a documented Lua mod API.
  • New recipes and items can use data-stage prototypes.
  • Expansion dependencies must be declared.
RECOMMENDED ROUTE

Build a small Lua data mod and test it in a fresh local map.

What you’ll need
  • A licensed PC copy and a separate save backup
  • Claude Code or another supported coding agent + universal-modder
  • Python 3.10+ and ffmpeg (uv recommended)
  • Factorio API documentation for your version
  • An isolated test save

Only if your idea needs it: fal API key for generated art (billed by fal) · Blender for 3D-to-sprite renders

Your starting prompt

COPY → PASTE → BUILD

Paste this into Claude Code with universal-modder installed.

Use universal-modder to plan a small Factorio mod for my own offline single-player PC copy. Add one original recipe as a Lua data-stage mod and validate its dependencies, icons and technology unlock. First confirm my exact game build and compatible tools, back up my saves, and explain the files you would change. Ask before installing a loader or changing game files. Stop if this requires anti-cheat or DRM bypass. Do not connect to multiplayer. Give me a reversible plan and a concrete in-game verification step.
READY FOR YOUR CODING AGENT
New to universal-modder? Start here
⌘ Under the hood Engine details & sources

Custom C++ / Lua API: Wube provides Lua prototype and runtime APIs; use documentation for your installed version.

Documentation-based assessment, reviewed 2026-10-04; not tested by CanYouMod. Applies only to offline single-player PC use. A documented loader is not a guarantee that your idea or current build will work.

Upstream knowledge base Source 1 Source 2
Offline single-player only. Back up your saves.

Documentation-based assessment, reviewed 2026-10-04; not tested by CanYouMod. Applies only to offline single-player PC use. A documented loader is not a guarantee that your idea or current build will work. Unofficial. universal-modder by rehan-remade, MIT.

FACTORIO Q&A

Common questions about modding Factorio

Can you mod Factorio with Claude Code and universal-modder?

+

Yes. Factorio (Custom C++ / Lua API) is a good offline starting point for universal-modder with Claude Code. Build a small Lua data mod and test it in a fresh local map. The developer exposes a documented Lua mod API. New recipes and items can use data-stage prototypes. Expansion dependencies must be declared.

What do you need to mod Factorio?

+

A licensed PC copy and a separate save backup; Claude Code or another supported coding agent + universal-modder; Factorio API documentation for your version; An isolated test save.

Is it safe to mod Factorio online or in multiplayer?

+

Keep to offline single-player play with a save backup. This assessment does not cover multiplayer, anti-cheat or DRM-protected sessions.