Storage Hunters Mutations List
Every mutation, what it multiplies your item value by, and exactly how to get it. Multipliers add together, so two mutations on one item sum their bonuses.
Last updated 2026-07-14
Full mutation multiplier table
Use the value calculator to combine any of these on a single item, or the tier list to sort them visually.
| Mutation | Multiplier | How to get |
|---|---|---|
| Dirty | 0.8x | Random roll |
| Cobwebbed | 1.2x | Random roll |
| Pure | 1.5x | Random roll |
| Moonlit | 1.5x | Weather |
| Silver | 2x | Random roll |
| Huge | 2x | Random roll |
| Tiny | 2x | Random roll |
| Antique | 2x | Random roll |
| Spotless | 3x | Random roll |
| Gold | 4x | Random roll |
| Firefly | 5x | Weather |
| Ancient | 5x | Random roll |
| Corrupted | 6x | Random roll |
| Wet | 6x | Weather |
| Shocked | 6x | Weather |
| Diamond | 8x | Random roll |
| Gem | 10x | Random roll |
| Chrome | 12x | Random roll |
| Timeless | 12x | Random roll |
| Hologram | 15x | Random roll |
| Void | 35x | Random roll |
| Secret | 50x | Random roll |
| Rainbow | TBA | Random roll |
How to get mutations
Random rolls
Most mutations roll at random when you open a container. Higher-value mutations like Diamond, Gem, Void and Secret are rare, so volume of lockers matters more than any single lucky bid.
Weather mutations
Moonlit weather boosts Moonlit and Firefly rolls; Rain boosts Wet and Shocked. Save your container openings for when the matching weather is live to tilt the odds.
Gavel Trophies
Gavel Trophies are earned by winning auctions. Displaying them raises your overall mutation chance, so they compound with everything else on this page.
Time Capsule
At $100,000 net worth the Time Capsule opens behind the Shopping Mall. You put an item in, pay Gems (the cost scales with the item’s value), and after a timer it rolls a mutation onto it. To be clear, because we got this wrong ourselves until 2026-07-14 and other guides still do: it does not let you pick the mutation you want. The roll is chance-based, rarer mutations are less likely, and you can come out behind — you spend the Gems either way. Plan the grind with the profit route planner.
Which mutations to keep and which to sell
Not every mutation is worth holding. The deciding factor is the base value of the item underneath it. A 50x Secret on a $50 piece of junk nets $2,500, but a plain 2x Silver on a $12,000 antique is worth $24,000 — the multiplier only matters relative to what it multiplies.
Keep and hold the SS and S tier rolls — Secret (50x), Void (35x), Hologram (15x), Chrome and Timeless (12x), Gem (10x) and Diamond (8x). These are rare enough that a single one can outvalue an entire truckload of clean items, so bank them until a big spender is at the sell counter. Sell on sight the Common and Uncommon rolls — Cobwebbed (1.2x), Pure and Moonlit (1.5x), Silver, Huge, Tiny and Antique (2x). They add up, but holding inventory space for them slows your cash flow. Fix, don’t dump a Dirty (0.8x) item — a trip to the Cleaning Shop restores base value for free.
The A tier is the judgement call. Gold (4x), Firefly and Ancient (5x), Corrupted, Wet and Shocked (6x) are common enough to sell quickly but valuable enough to hold if they land on a high-base item. When in doubt, price the exact item in the value calculator and compare it against your current cash goal.
Mutation stacking: worked examples
Because multipliers add instead of multiply, stacking is less explosive than players expect — but it is still the fastest way to turn a mid item into a jackpot. Here is the math on three realistic rolls, all on a $1,200 base item:
- Silver + Gold = 2x + 4x = 6x → a $1,200 item sells for $7,200. This is the classic early-game double roll.
- Gold + Diamond = 4x + 8x = 12x → the same $1,200 item jumps to $14,400. Diamond is where stacking starts to feel game-changing.
- Dirty + Void = 0.8x + 35x = 35.8x → $1,200 becomes $42,960. Note the Dirty barely dents a huge roll, so don’t bother cleaning a Void item — sell it as-is.
The takeaway: chase base value first, then let a lucky stack do the rest. A single 8x Diamond on a $10,000 item ($80,000) beats a stacked 6x on a $1,200 item ($7,200) every time.
Weather timing: when to open containers
Four mutations are gated behind weather, and the weather cycles on a server timer you can plan around. When Moonlit weather rolls in, your odds of Moonlit (1.5x) and the much rarer Firefly (5x) climb — so hoard unopened containers and crack them all while it is live. When Rain starts, the same trick applies to Wet and Shocked (both 6x).
The practical routine: bid and win lockers during clear weather, but hold the containers you haven’t opened. The moment the sky changes, open your backlog in a burst. You are not changing the base drop — you are stacking the deck toward the weather mutation on every container you pop. Pair this with a displayed Gavel Trophy (won from auctions) to raise your overall mutation chance on top of the weather bonus.
The same two weather cycles also turn on four exclusive items — Rubber Duck and Camping Backpack during Rain, Vampire Bat Valk and Vampire Dominus during Moonlit. Those are not mutations at all; they are separate items that simply are not in the pool outside their weather, and the Moonlit pair can outsell most mutation rolls on their own.
Frequently asked questions
How many mutations are in Storage Hunters: Open World?
Community sources list 23 mutations with published multipliers, from Dirty (0.8x) up to Secret (50x) — and Rainbow, which rolls but has no settled multiplier. There is also a 24th, Black, which is currently unobtainable and has no published multiplier, so it does not appear in our table.
How do you get weather mutations?
Moonlit weather raises the chance of Moonlit and Firefly mutations, while Rain raises the chance of Wet and Shocked. Keep opening containers while the weather is active.
What does the Time Capsule do?
The Time Capsule unlocks at $100,000 net worth behind the Shopping Mall. You place an item inside and pay Gems, and it rolls a mutation onto that item after a timer. It is not a way to pick the mutation you want — the roll is chance-based and the odds differ by tier, so it is a gamble that can also land you a worse result.
Which is the best mutation in Storage Hunters: Open World?
Secret at 50x is the single best mutation, followed by Void at 35x and Hologram at 15x. All three are rare random rolls, so a Secret on a high-base item is the biggest single payout in the game.
Do mutations stack on the same item?
Yes, but it is rare. When two mutations land on one item their multipliers add. A Gold (4x) plus a Diamond (8x) item is 4 + 8 = 12x its base value, not 32x. The value calculator sums whatever you tap.
Should I wash off the Dirty mutation?
Usually yes. Dirty is the only mutation that lowers value (0.8x). Take the item to the Cleaning Shop to strip it back to base price before you sell. The one exception is if a second, positive mutation is also on the item — cleaning can remove that too, so check the calculator first.
How we compiled this data
This table is compiled from community sources and cross-checked between them — it is not a set of numbers we measured ourselves at the sell counter, and we would rather say so than dress it up. Every multiplier below matches, item for item, the independent lists published by Nerdschalk and allthings.how, and the additive stacking rule (Silver 2x + Gold 4x = 6x, not 8x) is stated the same way in both.
Two honest gaps. Rainbow has no confirmed multiplier — some guides quote roughly 75x, but it is unsettled, so we show it as unknown rather than feed a guess into the calculator. And there is a 24th mutation, Black, which is currently unobtainable and has no published multiplier; it is left out of the table below because there is nothing to put in the multiplier column. If the developer publishes real figures, or re-tunes a mutation, we update the calculator and this list together.
Multipliers re-verified against sources 2026-07-14