Hey there, welcome to this post, In this guide, we will tell you all about DREDGE – Basic Stats and Aberrant Chance Following this guide each steps.

A complete list of stats for the game.
 

Aberrant Chance

Add these values to calculate the probability of an aberrant chance.

1. Chances at different times of the day: Daytime 1%, nighttime 3%.
2. Uncaught Bonus: Each non-aberrant catch increases the chances. I’m unable to find the exact amount.
3. Spot chance: The glowing areas have a 35% probability and guarantee at least one aberrant. These spots have a 2,5% chance of appearing during the day or 10% at nights.
4. Gear chance: Set by certain rods, see stats here: https://dredge.fandom.com/wiki/Rod#Aberrant_Bonuses – [fandom.com]

Additionally:

• Aberrant fish start to spawn only on day 5.
• The maximum aberrant spawning chance is 35%.

The exact figures are:

• aberrationStartDay: 5
• baseAberrationSpawnChance: 0.01
• nightAberrationSpawnChance: 0.03
• specialSpotAberrationSpawnBonus: 0.35
• maxAberrationSpawnChance: 0.35
• specialSpotChanceDay: 0.025
• specialSpotChanceNight: 0.1

 

Special Rods

Certain rods, or rod slot products, are more likely to find fish with aberrations.

The bonus listed below is a chance increase of +%.

Name	Bonus	Catches	Notes
Sinew Spindle	1	Coastal, Shallow	–
Viscera Crane	2	Abyssal Hadal	–
Tendon Rod	2	Oceanic, Shallow Mangrove	–
Encrusted Talisman	2	–	Fishing speed increases by +300%
Sign of Ruin	5	–	DLC item Blackstone Key ( [steampowered.com] )

Note: This info is also available on the wiki. It has images, shows, and slots. See here:

https://dredge.fandom.com/wiki/Rod#Aberrant_Bonuses – [fandom.com]

Bait

I haven’t seen any evidence that Bait increases the aberrant chance. However, I can share with you some stats:

• numCellsPerFishBait: 4
• numFishInBaitBallMin: 2
• numFishInBaitBallMax: 4
• numFishSpeciesInBaitBall: 4
• baitedTrophyNotchSpawnChance: 0.4

 

Atrophy

Atrophy will always produce at least 1 aberrant or infected fish. Here are some stats I found.

• atrophyStockPenalty: -10
• atrophyGuaranteedAberrationCount: 1
• atrophyTotalParasiteChance: 0.5
• atrophyConditionMin: 0.75
• atrophyConditionMax: 1.5

I would guess condition values set the freshness. Max freshness (“fresh”), is 3 (see below maxFreshness), so stale would be 2 and rotting 1, respectively. Atrophy fish always rot (1.5 – and I’d say that the atrophyConditionMin number of 0.75 means that it’s very near becoming mush.

Infected salmon will never decompose. Infected fish can be purchased at 50% off if you are hurrying to the shop.

Research Parts

Dredges have a small probability of revealing Research Parts (7%). They can also appear in crab pots (2%) but I’ve not seen them appear this way. If you have, please leave a comment below.

• researchItemDredgeSpotSpawnChance: 0.07
• researchItemCrabPotSpawnChance: 0.02

 

Misc

Other interesting stats

• Special spots are more likely to appear at night or during the day.
• The freshness of the fish is reduced by 1 rank or 2 ranks per 12 hours. The maximum is 3. 2 is stale, and 1 is rotting.
• Trophy fish appear 7.5% of the time, but you must catch 5 fishes before another appears.
• The banishing machine will last for half a-day. 12hrs.
• The infection spreads in 0.2 days (4.8hrs) with a 15% probability.
• There’s an indicator for infection/aberration, called “swapChance”, and it’s 15%. It appears that this means an infected animal has a 15 percent chance of becoming an aberration.

The exact data:

• specialSpotChanceDay: 0.025
• specialSpotChanceNight: 0.1
• freshnessLossPerDay: 2
• maxFreshness: 3
• trophyNotchSpawnChance: 0.075
• baitedTrophyNotchSpawnChance: 0.4
• fishToCatchBetweenTrophyNotches: 5
• banishMachineDurationDays: 0.5
• itemInfectionSpreadIntervalDays: 0.2
• itemInfectionSpreadChance: 0.15
• infectionAberrationSwapChance: 0.15

 

Notes

A player reported that the DLC “Arterial Engine”, which increases its speed in the night (
Source – http://steamcommunity.com

). I was unable to confirm this, either in the game or by looking at code. Please let me if you can confirm it.

Notes to fellow data miners. I got these values by dumping the games with
AssetRipper (github.com)

. The stats listed are from GameConfigDataProd.asset (eg `aberrationStartDay`). The function CreateFishItem, which is where the aberrant chance can be found in ItemManager.cs (search for the “[ItemManager] spawning aberration chance” debug note).

Please note that although these values were correct at the moment of writing, they may be balanced differently on patches.

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