Fisch · Fish
Abyssborn Monstrosity
“A colossal terror birthed from the abyss's cruel heart.”— in-game Bestiary description
Fish stats
Avg. sell value
C$17,778
C$ / kg
4
Weight range
2,500 kg – 12,063 kg
avg 4,000 kg
Base XP
5,000
By average value, Abyssborn Monstrosity ranks #18 of 28 Secret fish with a listed price.
Where and when to catch Abyssborn Monstrosity
- Location
- Cursed Isle
- Preferred bait
- Luminous Larva
- Time of day
- Night
- Weather
- Rain
- Season
- Winter
Abyssborn Monstrosity guide
Cursed Isle is the home of the Abyssborn Monstrosity, and its conditions read like a checklist of bad weather: Night, Rain and Winter, with a Luminous Larva as bait. A Secret fish asks for that kind of patience, and the combination of three filters means most sessions will not line up.
When they do, the numbers are worth it. An average catch weighs 4,000 kg, from 2,500 to 12,063 kg, ranking 88th of 663 by max weight. At C$4 per kg the average sale is C$17,778, which is 93rd of 742 by average value. Base XP is 5,000.
The island also sells the Great Dreamer Rod, the only rod listed there, so if you are looking for gear matched to the zone, that is the one to check. No other fish of the same rarity is listed alongside it.
The wiki calls it a colossal terror born from the cruelty of the abyss.
Verdict: a late-session target for players who already hold Luminous Larva and have time to wait for rainy winter nights. Do not set out for it blind. If you hook one, selling it for around C$17,778 is a fair outcome, and the XP is a bonus.
Average value × mutation multiplier
Abyssborn Monstrosity value with mutations
| Mutation | Multiplier | Estimated value |
|---|---|---|
| Albino | ×1.2 | C$21,334 |
| Aether | ×15 | C$266,670 |
| Hades' Curse | ×11.1 | C$197,336 |
| Tryhard | ×10 | C$177,780 |
| Plagued | ×10 | C$177,780 |
| Ascended | ×9.9 | C$176,002 |
| Gravitas | ×9.81 | C$174,402 |
Estimate = the wiki's average value × the mutation's listed multiplier. The real price also depends on the weight you land. All mutations
More fish at Cursed Isle
Data sourced from the Fisch Wiki (CC BY-SA) and processed automatically; not tested in the game; last synced 2026-10-21.