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Volpedia/Games/Factorio/Circuits/Decider combinator
FACTORIO / CIRCUITS

Decider combinator

Evaluates signal comparisons and produces output based on a condition.

Original Volpedia referenceReviewed 2026-10-27Quick reference · noindexBASE / CORE SYSTEM
Original Volpedia editorial diagram, not an in-game machine screenshotOriginal Volpedia illustration
OverviewResources17Machines17Logistics17Power12Trains11Circuits12Research14Weapons13Maps12Modes8Enemies11Blueprints10Space Age14Progression12Guides22Tips12Tools2
Practical advice: Build one simple stock-threshold trigger, then expand into more complex decisions.
How it worksPractical adviceMistakes to avoidRelated
01

How it works

Evaluates signal comparisons and produces output based on a condition.

02

Practical advice

Build one simple stock-threshold trigger, then expand into more complex decisions.

03

Mistakes to avoid

Confusing the measured signal with the desired output signal.

RELATED ON VOLPEDIA

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circuitsArithmetic combinator

Performs numerical operations on circuit signals with configured input and output behavior.

circuitsConstant combinator

Provides manually configured signals for thresholds and configuration values.

circuitsSelector combinator

Available in recent Factorio systems for selecting or sorting signals using configured modes.

tipsDocument circuit signals

Name target stocks, inputs and outputs clearly in combinator configurations.

circuitsCircuit memory cell

Feedback-based circuit arrangement that can retain a useful state while power and connections persist.

circuitsCircuit-controlled inserter

Turns an inserter on or off depending on measured stock or other conditions.

circuitsCircuit-controlled pump

Controls fluid routing based on tank values, network signals or other conditions.

Back to Circuits
IN THIS GUIDEHow it worksPractical adviceMistakes to avoidRelated topics
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Volpedia is an independent fan reference, not affiliated with Wube Software. Factorio mechanics and recipes may change between versions, mods and base game versus Space Age. Content last reviewed October 27, 2026. Category illustrations are original Volpedia diagrams, not gameplay screenshots. Factorio trademarks belong to their owners. Research and provenance records are maintained internally.

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