Skip to content
Powered by Pagefind
English
Probably Stolen Tools & Reference Tables

Probably Stolen Modules: Quality, Performance and Efficiency

See what Performance, Efficiency and Quality do on each Probably Stolen machine, why one percentage differs by machine, and which special modules change a recipe.

10/30/2026 1.0.0.2 Last updated: 10/30/2026 5 min read

What do Performance, Efficiency and Quality change?

Every module in a bay adds to three totals, and the machine reads those totals once per job:

  • Speed = base + base × Performance ÷ 100, so Performance shortens a job.
  • Power = base − base × Efficiency ÷ 100, with a floor of 1 kJ. Negative Efficiency raises the draw.
  • Quality raises the quality of what the machine produces, from ingot purity to water grade.

Universal modules fit any standard machine. A printer, furnace, alarm, farm, DNA, evaporator or chemistry machine also accepts its own module type, and the chemical machines take Chemical Equipment Modules only. Read the total shown in the bay rather than adding up modules by eye: the game rounds only at the end.

Universal modules: stats, value and bay space
Source
Quality Module+8% Quality to what the machine makes; speed and power unchanged702 × 2 cellsGame data (1.0.0.2)
Performance Module+16% Performance; speed = base + base × Performance ÷ 100702 × 2 cellsGame data (1.0.0.2)
Efficiency Module+16% Efficiency; power = base − base × Efficiency ÷ 100, never below 1 kJ702 × 2 cellsGame data (1.0.0.2)
Eco Module+32% Efficiency at −16% Performance1002 × 2 cellsGame data (1.0.0.2)

Why does the same percentage mean different things here?

Because each machine reads the total differently, the same +8% Quality module is worth 8 points on a purifier and 2 on a printer.

On a Furnace, one purity step costs 100 Quality, and a standard bay holds six 2×2 modules at best, which is +48. Stacking Quality alone will not raise an ingot’s purity, so a Flux Smelting Agent in the input is the cheaper route to a higher grade.

On a 3D Printer, Quality counts at a quarter: a Quality Module’s +8% reaches the machine as +2. The same module on a Water Purifier counts in full, but the purifier’s cap only steps at 100 and 200 Quality, so a lone +8% module (8 points) cannot reach the next step.

Efficiency is the reverse case. Sixteen percent of an 8 kJ print job is 1.28 kJ; sixteen percent of a 4 kJ purifier batch is 0.64 kJ. The same module is worth twice as much power on the machine with the larger draw, and the 1 kJ floor means a small machine can never be made free.

One 2 × 2 universal module on three different machines
Source
3D Printer8 kJ, speed 24+16% → +3.84 work per night+16% → 6.72 kJ+8% counted at a quarter → +2
Furnace8 kJ per smeltNo effect on a single smelt+16% → 6.72 kJOne purity step per 100 Quality
Water Purifier4 kJMore contaminant removed per night+16% → 3.36 kJRaises the cap; steps at 100 and 200 Quality

Which machines count a stat at a fraction?

Five machines discount part of the bay total, so a module fitted there is worth less than its printed number. Everything not listed here counts each stat in full.

Machines that apply a module total at a fraction
Source
3D PrinterFullFull×0.25
Mirage Projector×0.25Full×0.5
DNA Manipulator×0.5Full×0.5
Hydroponic System×0.5Full×0.5
AgeWell×0.5×0.5Full

The discount applies after the bay total is added up, so it cannot be worked around by spreading the same modules across more slots. On the Hydroponic System and the printer, plan for roughly double the Quality you would fit elsewhere.

Which special modules change a recipe?

These modules are not interchangeable upgrades. Each one unlocks a job, changes a batch or removes a restriction, and most of them pay for that by slowing the machine or raising its draw.

Recipe, batch and restriction modules
Source
Metal Printer Module3D PrinterUnlocks metal chips; raises power use by 50%3001 × 4 cells; required for 10mm magazines, frames, Gun Parts, Combat Knife and Combat MacheteGame data (1.0.0.2)
Computer Numerical Control Module3D PrinterUnlocks frame and Gun Parts chips with the Metal Printer Module; −25% speed and +25% power4001 × 4 cellsGame data (1.0.0.2)
Melee Batch Module3D Printer+1 weapon on every melee print; halves speed and raises power use by 50%2501 × 4 cells; each further module adds another weaponGame data (1.0.0.2)
Furnace Module (Blast)Furnace3 materials become 2 ingots one purity grade lower; double power use1501 × 4 cells; does not stackGame data (1.0.0.2)
Furnace Module (Junk Processing)Furnace6 Junk become 4 Scrap Metal on nights the Furnace smelts no ingot1201 × 4 cellsGame data (1.0.0.2)
Chemical Equipment ModuleBlender, Heating Plate, Chem FinisherBlender loss 35% → 20/10/5/0%; Finisher contamination 12% → 6/3/1/0%; one module fixes the plate at 160 °C2502 × 2 cells; two or more allow 26 to 160 °C on the plateGame data (1.0.0.2)
Evaporator Solvent Recovery ModuleEvaporatorRecovers only solvent, at +50% quality and +25% power use2751 × 4 cellsGame data (1.0.0.2)
Genetic Stabilizer ModuleDNA ManipulatorThe donor seed survives extraction; −50% speed and +25% power5001 × 4 cellsGame data (1.0.0.2)
Hydroreed Filter Hydroponic ModuleHydroponic SystemEach grown Hydroreed yields 1 Hydroreed Filter per module; +15% power use1051 × 4 cells; only affects HydroreedGame data (1.0.0.2)
Kotton Auto Loom Hydroponic ModuleHydroponic SystemKotton harvests arrive as fabric instead of fiber; −50% speed and double power use2001 × 4 cells; only affects KottonGame data (1.0.0.2)
Dream Cap Nightmare Hydroponic ModuleHydroponic SystemDream Cap grows as Nightmare Cap; does not stack1501 × 4 cells; only affects Dream CapGame data (1.0.0.2)
Alarm Transmitter ModuleAlarm SystemNames the faction the alarm alerts100A second transmitter sent to the same faction adds no effectGame data (1.0.0.2)
Module Bay Expansion KitStandard machines onlyOpens the next bay stage: 26 → 31 → 35 usable cells150Used up on installation; not for chemical or other special machines; adds 100 credits to machine valueGame data (1.0.0.2)
Blank ModuleRewritten by a suitable machineBecomes a working module once rewritten60The resulting stat roll is randomGame data (1.0.0.2)
Corrupted ModuleRepaired by hand with Electronic Parts (Common)Becomes a Performance, Efficiency or Quality Module45Quality is the likeliest result; a module stuck in a bay needs an extractorGame data (1.0.0.2)

Two of them decide whether a production line is viable at all. A Metal Printer Module is a standing cost of metal printing: every 10mm magazine, frame, Gun Parts and metal blade job needs it, and it adds 50% to the printer’s power draw. A Genetic Stabilizer Module is the difference between editing a bought seed and destroying your only copy of a trait.

How much bay space do you have?

A standard bay is a 7 × 5 grid, and the usable cells open in three stages. Special machines, including the chemical equipment, do not take the expansion kit at all.

Usable cells in a standard bay
Source
Stage 126Four corners and the middle plus shape
Stage 231Four corners
Stage 335Nothing

A Module Bay Expansion Kit opens the next stage and is used up, which matters when several machines compete for the same kit. A Module Extractor removes a module that will not come out on its own: the basic extractor has a limited number of uses, and the advanced one does not wear out.

Which module should you fit first?

Match the module to the constraint you actually have.

  • Power-bound machines (Evaporator, DNA Manipulator, AgeWell) want Efficiency first. An AgeWell also counts Efficiency at half, so a 16% module saves 1.92 kJ of its 24 kJ draw.
  • Throughput-bound machines (3D Printer, Furnace, Hydroponic System) want Performance only if the job is measured in work. A Furnace smelts once a night regardless, so Performance there changes nothing.
  • Quality-bound machines (Furnace, Water Purifier, Hydroponic System) want Quality, but check the step: purity steps at 100 on a smelter, water caps step at 100 and 200 on a purifier.

The machine table lists each machine’s base draw and overnight rule, and power, batteries and machine modules covers charging a cell that can keep up. For the jobs these modules unlock, see gunsmith, chemistry and hydroponics.

Related Articles

Was this helpful?