Use this hub to understand what players mean by mutations, which types have been reported, what x2 Mutation Luck may refer to, and which claims still need direct in-game proof.
In the sources checked for this site, mutation is the label used for reported variants of a caught fish. The official Roblox game description confirms the fishing and island-income loop, but it does not explain mutation mechanics.
That distinction matters: the mutation topic is real enough to investigate, but a reported name is not proof of its probability, effect, value, or availability on every fish. This page keeps those evidence levels separate.
Use mutations as a collection and screenshot checklist. Do not spend Robux, replace fish, or change progression based on an unsourced odds table or value multiplier. Check the gamepass evidence before making any decision around Mutation Luck.
Each statement is limited to the strongest evidence currently stored in this project. Reported items are not presented as official Openwater Games facts.
The official Roblox description confirms casting, catching fish, placing fish on an island for income, buying better rods, training, and shark risk. It does not define mutations or publish mutation odds.
A checked third-party guide reports six mutation names, while a third-party gamepass listing reports x2 Mutation Luck. These are useful leads, but neither source is an Openwater Games announcement.
Current project evidence does not verify mutation probabilities, value multipliers, a best mutation, or how Mutation Luck interacts with rods, training, events, or other boosts.
A checked third-party guide reports the names below. The list is a verification queue, not an official or guaranteed-complete mutation index.
Name reported by a third-party guide. Exact effect, probability, value, and eligible fish remain pending direct proof.
Name reported by a third-party guide. Exact effect, probability, value, and eligible fish remain pending direct proof.
Name reported by a third-party guide. Exact effect, probability, value, and eligible fish remain pending direct proof.
Name reported by a third-party guide. Exact effect, probability, value, and eligible fish remain pending direct proof.
Name reported by a third-party guide. Exact effect, probability, value, and eligible fish remain pending direct proof.
Name reported by a third-party guide. Exact effect, probability, value, and eligible fish remain pending direct proof.
A checked third-party listing reports a gamepass named x2 Mutation Luck, which supports player interest in a mutation-related luck mechanic.
The name alone does not verify how the pass works. It should not be converted into a drop chance, expected-value calculation, or best-pass recommendation.
For the listing status and other boosts, use the Pull a Lucky Fish gamepasses guide.
A reproducible record is more useful than a cropped label or an unsourced table. Capture enough context for another player to compare the result.
Capture the full catch screen with the fish name and any mutation label visible.
Record the zone, rod, training state, active gamepasses, boosts, and event state.
Capture the same fish without the reported mutation so any displayed difference can be compared.
Rejoin and confirm that the label and any displayed value remain attached to the fish.
Keep probability claims pending until there is a sufficiently documented sample or an official statement.
Checked third-party sources use mutations for reported fish variants, but the official Roblox description does not currently define the system. Exact effects, odds, and values remain unverified.
A checked third-party guide reports Gold, Diamond, Frozen, Cat, Bloody, and Molten. Treat these names as reported leads rather than an official or complete list.
A third-party gamepass listing reports an x2 Mutation Luck pass. The current project evidence does not verify its exact roll formula, affected outcomes, or stacking rules.
There is not enough verified evidence to rank mutations. A useful ranking requires current in-game proof of effects, values, probabilities, and which fish can receive each mutation.
Use the dedicated page for each adjacent question instead of treating this guide as a fish value, gamepass, or update database.
