Guide

Storage Hunters: Open World Mutation Multipliers and Stacking Guide

Patch: Mutation MechanicsUpdated: 2026-07-10MechanicsMath

Learn how Storage Hunters: Open World mutation multipliers work in the calculator, including value groups, stacking decisions and shelf price comparisons.

Quick Answer

This site's calculator multiplies selected mutation multipliers together (M1 × M2 × M3), then applies markup, dynamic floor and condition math. Use the Mutation Guesser when the sell price is known and you want to compare the closest mutation candidates.

How This Site Handles Stacked Mutations

The calculator uses multiplicative mutation stacking, exactly matching the official wiki algorithm. That means selected mutation multipliers are multiplied together into one total multiplier before condition math is applied.

Example mutationsCalculator multiplierMeaning
Silver + Gold2 × 4 = 8xMultiply both visible multipliers together.
Dirty + Gold0.8 × 4 = 3.2xDirty reduces the stack, but applies cleanly to Gold.
Diamond + Wet8 × 1.4 = 11.2xHigh-value stacks grow exponentially when multiplied.
Tip: After a major mutation update, recheck one stacked item in the calculator before using the same pricing strategy across your inventory.

Use the Full Mutation Table

The mutation table on the calculator and guesser pages is the fastest way to check the current multiplier list. Some entries, such as Black and Rainbow, do not have numeric multipliers here yet.

  • Dirty is listed as 0.8x.
  • Pure is listed as 1.875x, while Moonlit is listed as 1.5x.
  • Gold, Diamond, Gem and Chrome are high-impact value checks.
  • Void and Secret are extremely high multipliers in the table.
  • Black is unobtainable, while Rainbow is listed as 100x.
Tip: For trading decisions, check both base item value and multiplier. A huge multiplier on a tiny base value can still underperform a smaller multiplier on a stronger item.

Compare Unknown Shelf Prices

When you know the item, condition and shelf price but cannot identify the mutation, use the Mutation Guesser. It compares the price against known mutation candidates and shows the closest matches.

  • Select the exact item so the base value is correct.
  • Enter the observed sell price.
  • Match the condition as closely as possible.
  • Compare the closest candidates to the mutation table.
Tip: The guesser is most useful when the shelf price looks too high or too low for the visible item.

Mutation Guesser

Compare shelf prices against likely mutation candidates.

Storage Hunters: Open World Calculator

Calculate final sell price from known mutations.

Mutation data changelog

See what changed before trusting a new multiplier.

Storage Hunters: Open World Guide FAQ

Do Storage Hunters: Open World mutations stack multiplicatively on this site?

Yes. The calculator multiplies selected mutation multipliers together before applying markup, dynamic floor and condition math. This ensures maximum accuracy when pricing highly mutated items.

Why do Black and Rainbow not have calculator multipliers?

They are listed without numeric multipliers. Until verified numbers are added, treat them as unknown entries rather than calculator inputs.

Up Next

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Open Item Wiki

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Open Calculator

Model condition and mutation impact instantly.

Open Mutation Guesser

Compare shelf prices against likely mutation candidates.