Mutations are the single most important value mechanic in Storage Hunters: Open World. With 24 different mutations ranging from the value-reducing Dirty (0.8x) to the legendary Secret (50x), understanding every mutation type is essential for profitable gameplay. This guide explains every mutation in the game, including multipliers, rarities, stacking behavior, and practical strategies for each.
What Are Mutations?
In Storage Hunters: Open World, mutations are special modifiers that are randomly applied to items found inside containers. When an item has a mutation, its selling value is multiplied by the mutation's multiplier. Some mutations increase value dramatically, while others reduce it.
Key mutation facts:
- There are 18 mutations in the game
- Mutations are assigned randomly when you open a container
- Higher-tier areas and containers have better mutation odds
- Some mutations can stack on the same item
- Mutations are the primary driver of item value in the endgame
Complete Mutation List
Here is every mutation in Storage Hunters: Open World organized by tier:
S-Tier Mutations (Legendary)
These are the rarest and most valuable mutations in the game. Finding one is a cause for celebration.
| Mutation | Multiplier | Rarity | Visual Effect | Stacking Rule |
|---|---|---|---|---|
| Secret | 50x | Legendary | Unique glowing aura | Overrides all other mutations |
| Diamond | High | Legendary | Diamond crystalline texture | Overrides Gold and below |
| Chrome | High | Legendary | Chrome metallic sheen | Overrides Gold and below |
| Hologram | High | Legendary | Holographic rainbow shimmer | Overrides Gold and below |
| Corrupted | High | Legendary | Glitchy distortion effect | Overrides Gold and below |
| Gem | High | Legendary | Gem-encrusted appearance | Overrides Gold and below |
| Ancient | High | Legendary | Aged, weathered glow | Overrides Gold and below |
| Gold | 4x | Rare | Golden coloration | Stacks with Silver, Pure; overridden by Secret/Void |
A-Tier Mutations (Epic)
These are powerful mutations that significantly increase item value.
| Mutation | Multiplier | Rarity | Visual Effect | Stacking Rule |
|---|---|---|---|---|
| Void | 35x | Epic | Dark void-like aura | Overrides Gold and below |
| Timeless | High | Epic | Ethereal shimmer | Stacks with Silver, Pure; overrides Gold |
B-Tier Mutations (Uncommon-Epic)
Solid value mutations that provide reliable profit increases.
| Mutation | Multiplier | Rarity | Visual Effect | Stacking Rule |
|---|---|---|---|---|
| Rainbow | TBD | Epic | Rainbow gradient | Under investigation |
| Silver | 2x | Uncommon | Silver coloration | Stacks with Gold, Pure |
| Pure | 1.5x | Uncommon | Clean, pristine appearance | Stacks with Gold, Silver |
| Antique | Medium | Uncommon | Aged patina | Stacks with some mutations |
C-Tier Mutations (Common)
These are the most common mutations and some actually reduce value.
| Mutation | Multiplier | Rarity | Visual Effect | Stacking Rule |
|---|---|---|---|---|
| Tiny | Varies | Common | Reduced size | Stacks with most mutations |
| Black | Varies | Common | Dark coloration | Stacks with most mutations |
| Cobwebbed | Varies | Common | Cobweb overlay | Stacks with most mutations |
| Dirty | 0.8x | Common | Dirty, stained appearance | Reduces any stacked multiplier |
Mutation Multiplier Ranking
Here is every numeric multiplier mutation ranked from highest to lowest:
| Rank | Mutation | Multiplier | Rarity | Tier |
|---|---|---|---|---|
| 1 | Secret | 50x | Legendary | S |
| 2 | Void | 35x | Epic | A |
| 3 | Gold | 4x | Rare | S |
| 4 | Silver | 2x | Uncommon | B |
| 5 | Pure | 1.5x | Uncommon | A |
| 6 | Dirty | 0.8x | Common | C |
The legendary visual mutations (Diamond, Chrome, Hologram, Corrupted, Gem, Ancient) have multipliers categorized as "High," which the community estimates to be in the 5-20x range depending on the item and context. Exact multipliers for these are still being researched.
Mutation Probability by Area
The chance of finding mutated items varies significantly by area:
| Area | Any Mutation | Gold+ | Void+ | Secret |
|---|---|---|---|---|
| Junk Yard | ~5% | ~1% | <0.1% | <0.01% |
| Back Alley | ~10% | ~3% | ~0.5% | <0.05% |
| Farmyard | ~15% | ~5% | ~1% | ~0.1% |
| Shipyard | ~20%+ | ~8% | ~2% | ~0.3% |
| Diamond Safe | ~40%+ | ~15% | ~5% | ~1% |
These probabilities are community estimates based on player reports and may vary with game updates. The Diamond Safe container has dramatically better mutation odds than any other container type.
Mutation Stacking Rules
When two or more mutations apply to the same item, they interact according to specific rules. Here is a summary:
Rule 1: Secret overrides everything If an item has the Secret mutation, no other mutation multiplier applies. The item sells for 50x its base value regardless of any other mutation present.
Rule 2: Void overrides Gold, Silver, Pure, Dirty Void (35x) takes precedence over all standard value mutations. If an item has Void and Gold, only Void's 35x applies.
Rule 3: Compatible mutations stack multiplicatively Gold (4x) + Silver (2x) = 8x Gold (4x) + Pure (1.5x) = 6x Silver (2x) + Pure (1.5x) = 3x
Rule 4: Dirty reduces the total Dirty (0.8x) applies multiplicatively with any other compatible mutation. Gold (4x) + Dirty (0.8x) = 3.2x Silver (2x) + Dirty (0.8x) = 1.6x
Rule 5: Legendary visual mutations override standard mutations Diamond, Chrome, Hologram, Corrupted, Gem, and Ancient override Gold and below.
For detailed stacking calculations, see our Mutation Stacking Complete Guide and Mutation Stacker Calculator Guide.
Practical Mutation Strategy
Early Game (Junk Yard)
In the Junk Yard, mutations are rare. When you find one, it is most likely Dirty or Silver. Treat any Silver or above mutation as a windfall. Do not adjust your bidding strategy based on mutation expectations at this stage.
Mid Game (Back Alley, Farmyard)
Gold mutations become realistic possibilities. Adjust your maximum bids upward by 5-15% to account for mutation potential. Always check items for mutations before deciding whether to haul them.
Endgame (Shipyard)
Mutation farming is a primary goal. The Shipyard offers the best mutation rates, and the Diamond Safe is the ultimate mutation container. Bid aggressively on containers in the Shipyard, knowing that a single Secret mutation item can pay for dozens of auction losses.
Mutation Value on S-Tier Items
The highest-value items in Storage Hunters: Open World become astronomically valuable when combined with high-tier mutations:
| Item | Base Value | Gold (4x) | Void (35x) | Secret (50x) |
|---|---|---|---|---|
| Camping Backpack | 2,000 | 8,000 | 70,000 | 100,000 |
| Vampire Dominus | 5,000 | 20,000 | 175,000 | 250,000 |
These numbers illustrate why mutation hunting in the Shipyard is the ultimate endgame activity. A single Secret-mutated Vampire Dominus could be worth 250,000 cash.
Frequently Asked Questions
What is the rarest mutation in Storage Hunters: Open World? The Secret mutation (50x) is the rarest, with an estimated drop rate below 0.3% even in the Shipyard. It is a Legendary-tier mutation that appears as a unique glowing aura on the item.
Can mutations appear on any item? Yes, any item found in any container can potentially have a mutation applied. The probability depends on the area and container tier, not the item itself.
Do mutations affect item weight? Generally, mutations affect only the selling value, not the weight. The Tiny mutation is an exception, as it may reduce the visual size and potentially the weight of an item.
How do I know which mutation an item has? Mutated items have a distinct visual effect that identifies the mutation type. Gold items glow gold, Silver items shine silver, Void items have a dark aura, and Secret items have a unique glowing aura. Hover over or inspect the item to see the mutation name and multiplier. Visit the official Roblox page to start discovering mutations.
Related Guides
- Gold Mutation Value Guide - Detailed Gold mutation analysis
- Void Mutation Secrets - Void mutation deep dive
- Secret Mutation 50x Multiplier - The legendary mutation
- Mutation Stacking Complete Guide - How mutations interact