Deep Fishing Guide · content last verified September 21, 2026

Collection guide

How to Get Mutations in Deep Fishing

Mutation hunting sits on top of the ordinary cast loop. It deserves its own badge goal and its own evidence boundary.

No story spoilers

§Mutation is not Secret#

Roblox exposes First Mutation and First Secret as different badges. That is enough to keep the two goals separate. A mutation can be a property of a catch while Secret is a named rarity milestone; the official endpoint does not publish a formula connecting them.

Use the rarity page when the goal is Legendary, Mythical, or Secret. Use this page when the goal is any first mutated fish or a later collection of variants.

§Free route before spending#

  • Fix the hold-release cast first.
  • Reach water consistently before judging mutation frequency.
  • Keep the first mutated catch for the badge.
  • Sell ordinary volume to fund Strength.
  • Check the live shop before treating More Mutations as a verified effect.

§What the community shop reports mean#

Community structure references discuss a More Mutations pass alongside luck, coins, magnet, and Auto Sell options. Those names are useful for locating the live shop, yet the checked official APIs did not return a stable pass catalog or exact prices. Verify the current description and price in Roblox before spending.

Claim typeCurrent status
First Mutation existsOfficial badge verified
Mutation oddsUnknown
More Mutations pass nameCommunity-reported, live shop check needed
Guaranteed mutation routeUnknown

§FAQ#

Do I need More Mutations?

No requirement is established by the official sources checked here. It is a community-reported shop name; decide only after seeing the live description and your own goal.

Can a Common be mutated?

The checked official sources confirm the separate mutation badge but do not publish a species or rank rule. Keep that detail unknown rather than turning community wording into an official table.

Should I turn on Auto Sell while hunting mutations?

Use caution. Keep any catch you still need to identify or count toward a badge, and verify the live behavior before automating the sell step.