How to craft it
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Belts of Iron — publisher game artwork

Belts of Iron

Plan belts, storage, and research infrastructure for one expansion.

141objects8families117recipe routes

Plan a production rate

Set items per minute. Calculate connected machines, power and raw resources.

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Explore the catalog, compare choices and plan the resources for your next build.

DISCOVER SOMETHING NEW

Latest additions

Released additions ordered by source-recorded introduction. Explore the full directory for every dated object.

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BROWSE THE WHOLE GAME

Find your direction.

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PURPOSE, PROGRESSION & TRADEOFFS

Useful across the game

Luna-assisted choices across object families. Open an object to inspect its purpose, alternatives and material commitment.

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FROM THE DEVELOPER

Release notes & changes

Publisher announcements retain their dates. Upcoming features and recipe compatibility require their own evidence.

Source version, supported systems & project templates

boi 0.4.0 · FactorioLab snapshot

Pinned historical source snapshot. Modules, drones, research, world settings, and production rates are outside the material list. A separate steady-state flow view follows deterministic recipe ratios, joint outputs, and loops from the selected source data, with base machine counts where provided. It is source-based planning rather than gameplay verification and excludes modules, clock changes, fuel, and unlock effects.

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