THE FACTORY, DIAGNOSED IN CHAT

Your Factorio factory, diagnosed in Claude.

The Savecraft Export mod pushes your factory on every save -- production rates, power, science. Eleven calculators answer from the game's own data, and the factory doctor reads your actual numbers. Works with Claude and ChatGPT.

ADD FACTORIO SEE THE CALCULATORS
Factory health diagnosis showing Factory Stalled -- 5 critical bottlenecks, steel plate producing 38/min against 1,175/min consumed, copper cable needing one more Assembling Machine 3
Claude walking the research path to Artillery -- 7 technologies remaining, 12h 30m of research time, 172 already completed, with Vulcanus-tagged prerequisites listed in order
Production ratio calculator for electronic circuits -- machine counts by tier with belt requirements, computed from the game's recipe data
Savecraft Export mod on the Factorio mod portal Eleven calculators -- ratios, oil, power, trains, quality Factory health diagnosis from your own save Alpha -- vanilla recipe data
MOD-POWERED

Install the mod. The factory reports in.

Factorio's saves aren't readable mid-session, so Savecraft ships an in-game mod: it exports structured factory state to script-output, and the local daemon pushes it on every save.

Install once Grab the Savecraft Export mod from the Factorio mod portal and add it to your save. The Savecraft daemon watches script-output and does the rest -- no exports to run by hand.
Where the edges are This is an early (alpha) release. Reference calculators run on vanilla and official expansion data -- modded recipes and items aren't reflected yet. Your save's sections still capture modded state; the calculators answer for unmodded mechanics.
ELEVEN CALCULATORS

Ratios you don't have to alt-tab for.

Recipes, tech routes, ratios, oil, power, blueprints, evolution, modules, quality, trains -- computed from the game's own data files, so answers match the real recipes.

THE DIFFERENCE

What changes

WITHOUT SAVECRAFT
YOU My factory feels slow. What's wrong with it?
AI Common causes are belt throughput, inserter speed, or not enough assemblers. Check that your belts aren't backed up and consider upgrading to fast inserters. Adding more machines usually helps!

A checklist of maybes. It has never seen your factory.

FACTORY HEALTH -- REAL DIAGNOSIS
YOU |

The factory health module, run on your save's measured rates.

HOW YOU USE IT

An engineer on call

Diagnosis from your rates, routes from the tech tree, ratios from the recipes.

* FACTORY DOCTOR
YOU What do I fix first?
AI Steel. Producing at three percent of consumption blocks four downstream items -- and your iron surplus of +1,960 a minute means the fix is furnaces, not mining. The copper cable gap is one machine. Everything else is noise until those two are done.
= SCIENCE PLANNER
YOU How far am I from Artillery?
AI Seven technologies and about 12h 30m of research time at your current labs -- you've already completed 172. The path runs through calcite processing, tungsten carbide, and the foundry before artillery itself. Want the full ordered list with science pack costs?
+ POWER PLANNER
YOU I need 100 more megawatts. Steam, solar, or nuclear?
AI The power calculator sizes all three from the game's numbers -- boiler-to-engine ratios for steam, panel and accumulator counts for solar, reactor layouts for nuclear -- with fuel consumption per option so you can price the ongoing cost, not just the build.
FROM SAVE TO DIAGNOSIS

Three steps to a factory that confesses.

The mod exports; the daemon pushes; the calculators do recipe math.

Install mod + daemon

The Savecraft Export mod from the Factorio mod portal, plus the Savecraft daemon watching script-output. One-time setup.

Play. Save. Done.

Every save exports production rates, power, science progress, evolution, and more -- structured, not screenshots.

Ask the hard questions

"What's my bottleneck?" runs the diagnosis. Ratios, oil splits, train throughput, and quality odds come from the game's own data.

METHODOLOGY

We show our work

Your measured rates, the game's real recipes.

Your save's measured rates The diagnosis reads production and consumption rates the game itself recorded in your save -- not estimates, and never a guess about what your factory 'probably' looks like.
The game's data files Recipes, technologies, machine speeds, module effects, and quality math are generated from Factorio's own data, per game version. Ratio answers match what the assembler tooltip would tell you.
Honest edges Vanilla and official content only for now -- modded recipes aren't reflected. Modded factory state still surfaces in your save's sections. When this changes, this page changes.
MEET YOUR PLAYER TWO Chat about Factorio with Savecraft. It reads save files for games that ship save support, remembers your plans, and brings game tools into your next move.
MEET PLAYER TWO

The factory must grow.

Works with Claude and ChatGPT. Install the mod and your next save gets diagnosed.

ADD FACTORIO