Fisch Roblox Guide: How To Get Doomsday Mutation

Catch rare, high-value fish with the Doomsday Mutation in Fisch before the Ashfall event ends. Boost your odds and reel in massive profits.

A Treasure Map in Fisch (Source: Roblox)

In the world of Roblox’s Fisch, the Ashfall event has turned up the heat, quite literally. With Roslit Volcano erupting, it’s not just the landscape that’s changed; the fishing has too. Enter the Doomsday Mutation, a hot commodity that quadruples the cash you reel in. Picture this: casting your line into lava-infused waters, snagging fish that are glowing with potential and profits.

You don’t need fancy gear, just your trusty rod and some bait. And while the chance to catch these orange-bodied mutants is a mere 10%, the payout is anything but small.

How To Get Doomsday Mutation in Fisch

The Doomsday Mutation is exclusive to the Ashfall event in Fisch. It applies to certain fish, making them sell for four times their normal price. To get this mutation, you must fish in lava formed by the Roslit Volcano eruption. This lava flows into Roslit Bay, creating the only location where Doomsday Mutated fish can be caught.

Fisch
Ashfall event is live! (Source: Roblox)

Where to Find Doomsday Mutation

Head to Roslit Bay, east of the map. If you have a GPS, navigate to X:-1450 Y:135 Z:750. The lava-filled waters in this area are your fishing spot. Unlike fishing inside the Roslit Volcano, you don’t need a special rod here. Any fishing rod will work.

The only exception is the Coelacanth. This fish can mutate anywhere in the ocean, so you don’t need to fish in lava to catch it with the Doomsday Mutation.

Best Strategies for Catching Doomsday Mutated Fish

Getting a Doomsday Mutation is random. There’s only a 10% chance that a fish will have it. To improve your odds, use the right gear and boosts:

  • Equip the Aurora Totem to increase your chances of catching mutated fish.
  • Use Merlin’s VI, which gives an extra luck boost for rare catches.
  • Choose rods that speed up fishing. The No-Life Rod with Hasty Enchant and Tempest Rod with Steady Enchant are the best options.
  • Keep fishing. The mutation is rare, so catching multiple fish increases your chances.

A Doomsday Mutated fish has an orange body, making it easy to spot once you’ve caught one.

Best Fish to Catch and Sell

Fishing in Fisch Roblox
Which fish are you selling? (Source: Roblox Corporation)

Doomsday Mutated fish sell for four times their base price, making them some of the most valuable catches in the game. The best fish to target include:

  • Ashcloud Archerfish – Normally sells for 23,500 cash, but with the mutation, it sells for 94,000.
  • Infernal Eel – Base price is 12,000, but a mutated version sells for 48,000.
  • Molten Pufferfish – Usually worth 8,750, but goes for 35,000 when mutated.

If you want to maximize profits, prioritize catching Ashcloud Archerfish. It has the highest resale value with the mutation.

Event Timeframe

The Doomsday Mutation is only available during the Ashfall event, which runs from February 15 to February 22. After that, the mutation will disappear, and the special lava fishing location in Roslit Bay will likely be removed.

To take full advantage of this event, stock up on bait, use luck-enhancing items, and fish as much as possible before time runs out. If you want quick profits, focus on catching high-value fish with the mutation—the more you catch, the more money you’ll make.

This is one of the best ways to earn cash fast in Fisch, but the window is small. Start fishing in lava before the event ends.


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