Changelog

Version: 1.1.34
Date: 2026.09.16
  Info:
    - Same code as 1.1.33, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.

Version: 1.1.33
Date: 2026.09.16
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.34).
    - The original Recursive Resource Calculator is marked incompatible: both open on ALT + X, so only one can
      be enabled.
  Changes:
    - The mod lists quality (Factorio 2.0) and recycler (Factorio 2.1) as optional dependencies; they provide
      the recycle icon.
    - Shorter mod description in the mod list.

Version: 1.1.32
Date: 2026.09.16
  Info:
    - Same code as 1.1.31, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.
    - Quality is not calculated in Factorio 2.1 yet, so the base-quality row stays hidden there; the pickers
      and the pipette key work as in 1.1.31.

Version: 1.1.31
Date: 2026.09.16
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.32). 1.1.25 to 1.1.30 were
      test builds only; their changes are listed here.
    - Reports are rebuilt when the save loads, so machine and beacon buttons of older reports become picker
      buttons.
    - The pipette key follows the player's own binding (Q by default) and still pipettes in the world as before.
    - The recycle icon needs the quality mod (Factorio 2.0) or the recycler mod (Factorio 2.1); without it the
      two rows show their text as before.
    - A copied machine or beacon setup lasts while its item stays in the hand untouched; putting it down and
      picking it up again forgets the setup.
  Features:
    - Module slots open a module picker: every module the slot accepts in one grid with no groups, and the
      unlocked qualities below. One click selects; a double click on a module (or on a quality once a module is
      chosen), the green tick or Enter stores it. "No module" empties the slot; a right click on a slot does too.
    - Picking a module into a slot row that holds no module fills every slot of that row, for machines and
      beacons alike. A row that already holds a module takes only the picked slot.
    - The pipette key over a module slot puts that module, with its quality, in the hand; over another slot it
      pastes the module in the hand (an empty row fills).
    - The pipette key over a machine button copies the machine with all its modules and beacon groups; over
      another row's or loop stage's machine button it pastes them. Modules the new recipe refuses are left out,
      with a message.
    - The pipette key over a beacon button copies the whole beacon group; over another group it replaces it,
      over the add button it adds it.
    - Machine buttons open a machine picker and beacon buttons a beacon picker, the same window as the module
      picker. A right click on a beacon group removes it; the picker's trash button does too.
    - A left click on a module slot while holding a module (or its ghost) puts that module in the slot. A left
      click on a machine or beacon button while holding the copied machine or beacon pastes, as the pipette key
      does. With anything else in the hand, a left click opens no picker.
    - The pipette key pastes a machine or beacon setup onto one that shows the same machine or beacon, and the
      copied item stays in the hand.
  Changes:
    - The base-quality choice (left over, crafted by another recipe, recycled) is a labelled row, label and
      drop-down side by side, that shows only when the sheet targets an item above normal quality. Sheets saved
      with the old drop-down keep their choice.
    - The pickers show qualities as icons; "No module" shows the empty module slot icon. The picker's buttons
      are all the same size.
    - Long messages in the report wrap instead of widening their column.
    - The round-up checkbox and Compute share a row, lined up under the base-quality label and drop-down.
    - A quality loop stage that runs no machines says why (e.g. no uncommon iron ore available to it) in a short
      wrapped text, keeping its controls.
    - The recycler pool and returned-items rows show the recycling icon, with their old text as its tooltip.
    - Module lists leave out hidden and parameter modules; a hidden module already set keeps its slot and can
      be removed.
  Locale:
    - New texts for the base-quality label, the module, machine and beacon pickers, the pipette and its
      messages (English in all three languages).

Version: 1.1.24
Date: 2026.09.15
  Info:
    - Same code as 1.1.23, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.
    - Quality is not calculated in Factorio 2.1 yet: none of the 1.1.23 quality changes apply there.

Version: 1.1.23
Date: 2026.09.15
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.24).
    - A recipe that takes no items (e.g. casting from molten metal) crafts only normal quality, so it can start
      a loop but not craft its higher tiers.
    - When higher-quality items are shared by several loops, each loop may cover the same share of its target
      from them; a loop held back by another missing item leaves its part to the others. If the calculator
      cannot settle the shares it says so; the sheet may still be possible.
    - Sheets with several loops using the same higher-quality items take longer to compute.
  Features:
    - Each tier of a quality loop above its start quality has its own recipe: casting gears from molten iron at
      normal quality and assembling higher-quality gears from recycled plates now works. The recipe is picked
      automatically and can be changed on each tier row.
    - Loops use higher-quality items made elsewhere on the sheet, e.g. uncommon plates from a foundry with
      quality modules go into the uncommon gear tier instead of showing as byproducts. The tier row's tooltip
      shows what it takes from other rows. A loop that needs such items to reach its target at all uses them.
    - Each sheet chooses what happens to items a loop gets back at its start quality when its start recipe
      takes no items: left over, crafted into the item by another recipe (an extra row after the start tier),
      or recycled into themselves in the recycler pool until gone or upgraded.
  Bugfixes:
    - The recycle recipe control lists only recipes that can recycle the item, instead of every recipe using
      it (such as the recycler building). It is disabled when no recipe can.
    - The byproduct row of a loop's own item offers that loop's recycle recipe instead of a consumer or burner,
      which replaced the item's recipe and broke the loop.

Version: 1.1.22
Date: 2026.09.15
  Info:
    - Same code as 1.1.21, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.
    - Quality is not calculated in Factorio 2.1 yet: quality targets say so on their row, and quality modules
      do not change rates.

Version: 1.1.21
Date: 2026.09.15
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.22).
    - Loops saved by 1.1.19 get their crafting modules copied to every tier, including the target tier; remove
      the quality modules there if that tier should craft without them.
  Features:
    - The recipe button of a quality loop also picks the recipe's quality: the loop crafts from that quality up
      to the target (legendary from legendary parts is one tier), and its ingredients are asked for at that
      quality. An ingredient above normal quality is made by its own loop when its item has a recipe.
    - Every tier of a quality loop has its own machine and modules, so the tiers below the target can use
      quality modules and the target tier something else.
    - Recyclers of a loop are one pool: a total row holds their machine, modules and recycle recipe, and each
      tier row shows the recyclers running at that quality.
  Changes:
    - Quality modules now change the rates of every recipe row: a row's normal output shrinks by the share
      that comes out at higher quality, and those items show as byproducts. Modules count at their own quality.
    - A quality loop that cannot be solved shows all its tiers and the recycler pool with their editors.

Version: 1.1.20
Date: 2026.09.15
  Info:
    - Same code as 1.1.19, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.
    - Quality targets are not calculated in Factorio 2.1 yet, as its quality mechanics are not verified:
      a target above normal quality says so on its row.

Version: 1.1.19
Date: 2026.09.15
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.20).
    - Quality loops assume each tier crafts as many sets as its returned ingredients allow and recycles
      everything below the target. Chances after a first upgrade use the reached quality's next_probability
      (10% in the base game); modded quality chains are not verified in game. Items the loop leaves above
      normal quality show as byproducts without a consumer or burner control.
  Features:
    - Targets can have a quality. A target above normal quality is made by a quality loop: crafting with
      quality modules, and recycling what misses the target quality back into its ingredients. The report
      shows a row per quality tier with the crafting machines and recyclers running there, their counts
      and upgrade chances, and the loop's module and recycle recipe controls. The recycle recipe is
      picked automatically when only one recipe fits; without one, nothing is recycled.
    - Loop settings are kept per item and quality and shared by every sheet.
  Changes:
    - The module effects label shows a quality effect as the chance to upgrade from normal quality
      (Factorio 2.0), instead of the raw effect.
    - A recipe with a single possible machine can still pick that machine's quality.
    - Sheets saved by older versions keep their targets; their item buttons now also pick a quality.

Version: 1.1.18
Date: 2026.09.15
  Info:
    - Same code as 1.1.17, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.

Version: 1.1.17
Date: 2026.09.15
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.18).
    - Burner counts assume full load. Boilers and generators burn fuel only while their output is used.
      In Factorio 2.1, fluid energy sources with an output fluid box are not offered.
  Features:
    - Excess products can be reprocessed: byproduct rows have a recipe button listing recipes that
      consume the product (cracking, recycling, venting, modded recipes). The chosen recipe takes all
      of the excess, and its own outputs join the sheet, where they can be consumed in turn.
    - Excess fuel can be burnt: byproduct rows offer the reactors (such as the heating tower), boilers
      and burner generators that accept it. The row shows how many burn it at their maximum draw and
      their pollution; burnt results such as spent fuel join the sheet. Fluids with a fuel value can be
      burnt by fluid-burning energy sources.
  Changes:
    - A sheet whose bindings would need a recipe or burner to run backwards, or a consumer that no
      longer consumes its product (for example after productivity research), no longer shows wrong
      totals. The rows at fault say why, energy and pollution show as unavailable, and every machine,
      module, recipe and burner control stays usable to fix it.
    - A sheet that cannot be solved no longer keeps the previous report on screen: it lists the recipes
      it uses so a binding can be undone.
    - Machine buttons remember their own row, so a report left from before a recipe change refuses edits
      instead of changing another recipe's machine.

Version: 1.1.16
Date: 2026.09.13
  Info:
    - Same code as 1.1.15, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.

Version: 1.1.15
Date: 2026.09.13
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.16).
    - First release as RRC-Fork, a fork of RecursiveResourceCalculator by Herddex. The game treats it as a
      different mod: sheets saved with RecursiveResourceCalculator do not carry over. Disable the original
      while this one is enabled, since both open on the same key.
  Features:
    - Each report row shows exactly the chosen machine's module slots at the machine's quality, and
      each slot offers only modules that both the machine and the recipe accept. Modules can have quality.
    - Beacon groups: each group sets a beacon and its quality, how many beacons reach one machine, how
      many machines share each beacon, and the modules inside the beacon. Effects follow the beacon's
      distribution effectivity, quality bonus, profile and beacon counter.
    - Energy consumption includes beacons, counted once per physical beacon.
  Changes:
    - Module counts from older saves are converted once into whole slots in their stored order.
      Fractions, modules the machine or recipe refuses, and modules past the machine's slots are
      dropped, so machine counts in old sheets change.
    - Beacon effects are computed exactly. Factorio 2.0 rounds them internally, so its machine tooltip
      can differ slightly.

Version: 1.1.14
Date: 2026.09.13
  Info:
    - Same code as 1.1.13, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.

Version: 1.1.13
Date: 2026.09.13
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.14).
  Features:
    - Sheets can target fluids: each input row has a fluid button next to the item button.
    - Each sheet has a "Round up machines" checkbox that shows machine counts as whole machines.
      Rates, energy and pollution stay exact; the exact count is shown in the tooltip.
  Changes:
    - Recipes with additional crafting categories can use machines of any of their categories.
    - Queued recomputations run oldest first, so the calculator is centered after its sheets.
    - When a pivot is missing the solver reorders rows, and it cross-checks its answer with a
      largest-pivot elimination, keeping the answer that fits the equations better.
  Bugfixes:
    - Fixed some solvable systems being reported as having no solution.
    - Fixed systems mixing tiny and huge amounts getting wrong machine counts, depending on the
      order in which recipes were processed.
    - Fixed a crash on configuration change when a mod turned a chosen crafting machine into
      another kind of entity.

Version: 1.1.12
Date: 2026.09.13
  Info:
    - Same code as 1.1.11, released for Factorio 2.1. Not yet tested in a Factorio 2.1 game.
  Bugfixes:
    - Fixed products with a chance being counted at 100% on Factorio 2.1, where the probability
      of a product is described by independent and shared probabilities.

Version: 1.1.11
Date: 2026.09.13
  Info:
    - Released for Factorio 2.0. The same code also runs on Factorio 2.1 (see 1.1.12).
  Changes:
    - Items and fluids produced by one recipe and consumed by another are now shown at their net
      rate (consumption minus production), not only when production exceeds consumption.
    - Rows of intermediate products show the output rate of their recipe.
    - The same item entered in several input rows of a sheet is now summed.
  Bugfixes:
    - Fixed recipes listing the same product several times (e.g. spoilage variants) needing many
      times too many machines and showing a negative production rate.
    - Fixed catalysts (e.g. Kovarex enrichment process) being computed as if the ingredient
      replaced the product.
    - Fixed productivity bonuses being multiplied instead of added, and not being capped at the
      recipe's maximum productivity.
    - Fixed productivity being applied to catalyst amounts, and to randomized amounts before
      averaging.
    - Fixed extra count fractions not being weighted by product probability.
    - Fixed the quality of the chosen crafting machine being ignored for machine counts and lost
      from the machine button.
    - Fixed byproducts whose recipe is selected but unused missing from the report.
    - Fixed empty sheets showing an empty report.
    - Fixed small recipe amounts crashing the solver or being rejected as unsolvable.
    - Fixed a crash on configuration change after a mod adding modules was removed.
    - Fixed productivity research recomputing the wrong players, which crashed in multiplayer.
    - Fixed the calculator's count of pending computations never decreasing.
    - Fixed a crash when a player with pending computations is removed.
    - Fixed crashes with crafting machines that have no effect receiver or emit no pollution.

Version: 1.1.10
Date: 2026.08.19
  Info:
    - Updated to Factorio 2.1.

Version: 1.1.9
Date: 2026.06.17
  Bugfixes:
    - Fixed an incorrect product amount computation formula.

Version: 1.1.8
Date: 2025.08.25
  Bugfixes:
    - Fixed researched recipe productivity bonuses not being taken into account.

Version: 1.1.7
Date: 2025.08.03
  Bugfixes:
    - Changed the default key binding for opening the calculator to ALT + X so that it won't
      conflict with the default keybinding for copper wire anymore.

Version: 1.1.6
Date: 2025.02.15
  Bugfixes:
    - Fixed a crash triggered by recipes that have "research-progress" as a product.

Version: 1.1.5
Date: 2024.12.02
  Bugfixes:
    - Fixed a rare timing crash triggered when the game saves while the calculator still has
      backlogged computations to do.

Version: 1.1.4
Date: 2024.10.26
  Minor Features:
    - Hovering over a recipe choosing button now displays the selected recipe's tooltip.
    - Added quality to the tracked module effects.

Version: 1.1.3
Date: 2024.10.22
  Bugfixes:
    - Fixed a crash triggered by recipes which could only be crafted manually.

Version: 1.1.2
Date: 2024.10.22
  Bugfixes:
    - Fixed a crash triggered on game configuration change.

Version: 1.1.1
Date: 2024.10.21
  Info:
    - Updated to Factorio 2.0.
    - Temporarily disabled module filtering.
    - Quality modules not yet supported.

Version: 1.1.0
Date: 2024.10.21
  Major Features:
    - Added the ability to solve "complex" recipe systems. Limitations:
      1) The calculator will show an error message whenever a unique solution does not exist.
      2) The calculator now requires that each involved product be assigned a unique recipe, and
      that each used recipe is associated to a unique product. Selecting recipes in the correct
      order is therefore required to handle complex recipe systems.
  Minor Features:
    - Sheets can now have multiple final products set.
    - Removed "Totals" section, as its functionality can now be achieved by setting all final
      products in one sheet.
    - Changed crafting machine selection to be unique per recipe, instead of unique per crafting
      category, as this caused some annoying behavior with some mods.
  Optimizations:
    - The calculator now uses Sparse Gaussian Elimination instead of the old recursive
      decomposition algorithm, to allow for solving "complex" recipe systems.
      This also significantly improves performance.

Version: 1.0.8
Date: 2021.12.30
  Bugfixes:
    - Fixed a crash triggered by the removal of mods that add new crafting categories to the game.

Version: 1.0.7
Date: 2021.11.30
  Bugfixes:
    - Empty input textfields in the calculator's sheets will no longer trigger an
      "Invalid production rate" error on (re)calculation. They will just be interpreted as
      production rates of zero.
  Changes:
    - Default module counts are now set to 1 instead of 0.
    - Byproducts in reports no longer have a choose-recipe-button in their row, since it is
      redundant in that case anyway.
  Locale:
    - Added Czech and Romanian localizations.

Version: 1.0.6
Date: 2021.11.25
  Minor Features:
    - The time unit for the target production rates can now be chosen between "/m" and "/s"
      using a drop-down to the right of the production rate textfield, which replaces the previous
      "/m" static label.

Version: 1.0.5
Date: 2021.11.22
  Bugfixes:
    - Fixed a crash caused by the on_player_removed event handler. Moreover, the handler should now
      do the proper cleanup whenever a player is removed from the game.

Version: 1.0.4
Date: 2021.11.19
  Changes:
    - Numbers shown in the report now use a fixed decimal precision instead of the default
      behavior of displaying all the representable decimal digits of the number, except for
      trailing zeroes (which caused really long and ugly numbers to be shown in many cases,
      especially when using modules). Precision is set to 3 by default, but it can be set between 1
      and 6 inclusive in the Mod Settings. The setting is per save.

Version: 1.0.3
Date: 2021.11.14
  Bugfixes:
    - Fixed a crash related to items/fluids that had production rates of zero, usually caused by
      "barreling" and "un-barreling" recipes. Entries with production rates of zero will be
      eliminated from now on.

Version: 1.0.2
Date: 2021.10.21
  Bugfixes:
    - Fixed a crash triggered by recipes which can only be crafted manually.
  Locale:
    - Added a label for recipes which can only be crafted manually.
    - Changed the label "Undecomposable" to "Not decomposable".

Version: 1.0.1
Date: 2021.10.18
  Bugfixes:
    - Fixed the infinite recursion crash that occurred with some recipes of some
      overhaul mods, by no longer allowing the Decomposer to enter cycles.
  Minor Features:
    - Recipes with the allow_decomposition property set to false can now be used by the mod too.
  Locale:
    - Added a tooltip to the choose_recipe_button to better inform the player about how the recipe
      can be unselected. This replaces the default tooltip (which displays the recipe itself).
  Changes:
    - Removed the keybind for "completely" resetting the calculator (CTRL + ALT + C by default),
      because it was only useful for debugging and it's not needed anymore.

Version: 1.0.0
Date: 2021.10.15
  Info:
    - Initial release