DREDGE 100%

100% completion guide for DREDGE + DLC, with screenshots.

Story

Introductions

Meet the Fishmonger and Shipwright.

The Key

Collect the Key from The Marrows.

The Secret

Collect the Music Box by helping the Hermit and blowing up the debris.

The Bond

Collect the Ring by helping the Researcher.

The Chains

Collect the Necklace by helping the Airman.

The Moment

Collect the Pocketwatch by "helping" the Fanatic.

Unshackled

Complete the game normally.

Sated

Instead of saying you're ready, ask for more time.
Find the abandoned island campsite that is now occupied [there is one to the SW of the Marrows] and speak to the person there, then speak to the Lighthouse Keeper.
Return to the Collector and ask about the book, then demand he give it to you.
Speak to the Lighthouse Keeper a final time.

Progression

Hull: Improved

Upgrade to Hull lvl.2

Hull: Refined

Upgrade to Hull lvl.3

Hull: Advanced

Upgrade to Hull lvl.4

Swift Reaper

Have a fishing speed of 200%. Stack a couple rods of the same type.

No Time to Linger

Have an engine speed of 75kn. Should occur with normal upgrades.

Light up the Night

Reach a lumen strength of 3000. The lightbar unlocked at Hull lvl.4 gives 3000 lumen.

Researcher: Engines

Research all Engine upgrades.

Researcher: Rods

Research all Rod upgrades.

Researcher: Pots

Research all Pot upgrades.

Researcher: Nets

Research all Net upgrades.

Places you can get Research Materials:
-Research Material dredging locations
-Rare chance during normal dredging
-Looting shipwrecks, camps, and other points of interest on the shores.
-Sold by Travelling Merchant, restocks over time.
-Reward for catching rare fish for Traveling Merchant.
-Reward for turning in dog tags to the Airman.
-Reward for completing most sidequests.

Powers

Cruel Heat

Maintain heat above 50% for 10 seconds. [Thank you crazyabe111]

Dimensional Bypass

Use the teleport power from far away. I used it from off the map, but others have found the other island chains to work. [Thank you CountZio and Tolkien Book Fan]

Banisher

Banish 10 threats. This may not count the small fish at Devil's Spine, but it definitely counts the Ships at night. [Thank you crazyabe111]

Unsustainable Fishing

Harvest a fishing spot from long distance. Atrophy harvests the spot closest to you, so I found an isolated spot and moved until it was just at the edge of my vision. Harvested spots do recover, just very very slowly. [Thank you crazyabe111]

Unique Actions

From the Fog

Honk to a friend in the night.

Perfect Packing

Perfectly fill your hull. Crabs are your friends.

Feeling Prepared

Fill all of your equipment slots. Very easy late-game, but achievable at any time.

Mixed Results

Catch three different fish from a baited spot.

Prey Sighted

Use the Spyglass to view each type of fishing spot (Shallow, Oceanic etc.).
"Dredge" may count as a spot that needs to be spied.
[Credit to CountZio!]

Servant of the Shrines

There are four shrines.
- Behind the town of Great Marrow: Demands Cod! [Thank you CountZio]



- On the backside of the Gale Cliffs: Demands crabs, at least one must be Decorator.



- On an island near the Stellar Basin: Demands the four Sharks: Hammerhead, Whaler, Blacktip, and Ghost. [Thank you harveyrice]



- Hidden within the Twisted Strand: Demands a single Aberrant Fish.

Providence

Complete all sidequests. One way or another.
"One way or another" means you are allowed to fail the Hooded Figure quests.
A quality of life update has removed quest timers.



The Collector
Main Quest.

Recording Rarities
Catch the four unique fish
-The Oarfish behind the waterfall in Gale Cliffs.


-The Gulper Eel by the Research Station at the Stellar Basin.


-The Goliath Tigerfish in a blocked pond on the southside of the Twisted Strand.


-The Coelacanth in the small blocked passage behind the Devil's Spine.

The Marrows

A Fresh Start
Introductory quest. Meet the Fishmonger and Shipwright.

Grotesque Fish
Required quest. Catch an Aberrant fish and give it to the Fishmonger, then speak to the man on Blackstone Isle.

Caught to Order
Complete the Fishmongers special orders.
Order 1: Flounder and Eel, both require Shallows rod.
Order 2: Squid and Black Grouper, both require fishing at night.
Order 3: Common Crab and Fiddler Crab, both caught in Marrows crabpot.
Order 4: Any Aberrant fish.

A Place to Rest
Bring supplies to Steele Point for the builder, then transport her there.

Package Delivery
Bring a package from the Mayor of Great Marrow to the Dockworker in Little Marrow.

Lost at Sea
Dredge up the Bronze Beltbuckle by Little Marrow and give it to the Grieving Father in Little Marrow.

Castaway
Find the Castaway on the shore near Steele Point and transport him to Little Marrow.

Gale Falls

Hermitage
Required Quest. Recover the Family Heirloom for the hermit, then blow up some debris for the Retired Whaler and speak to him. Finally, transport the Hermit to Ingfell.

Best Before
Catch a Conger Eel for the woman in Ingfell and let it sit in your cargo until it is rotting. Conger Eels only come out at night in the Gale Cliffs.

Stellar Basin

Research Assistant
Required Quest. Catch all of the fish the Researcher asks for.
The first three she asks for are the Firefly Squid, Glowing Octopus, and Aurora Jellyfish, all of which are caught in the Basin at night.
She then gives you the Sampling Device, allowing you to catch Abyssal and Hadal fish, and asks for four more fish: The Giant Amphipod, Loosejaw, Snailfish, and Anglerfish.
The Amphipod and Snailfish are located above the center of the basin and can only be safely recovered when the Repulsion Device is active.

Lost Dog
Find the lost dog on the coast of the Stellar Basin and transport them to the Researcher.

Twisted Strand

The Bitter End
Required Quest. Find the two mortar pieces for the Airman and then craft the special baits. Bait the traps and return the Mind Sucker carcasses to the Airman.

Craven Courier
Find the terrified Courier's ship between Twisted Strand and The Marrows, deliver their package to the Dockworker in Little Marrow.

Devil's Spine

Flames of The Deep
Required Quest. Solve the 3 shrines located around Devil's Spine and recover the Cold Flames.

Stone Tablets
Dredge up the four Stone Emblems and give them to the Pawnbroker, he will return a glowing stone tablet. Take the Tablet to the Ancient Lighthouse at Devil's Strand and open the door.

Hooded Figures

Each Hooded Figure will ask for three fish to be delivered to them. (These quests no longer have timers associated with them)

(Thanks AdamFiveNumbers)

Figure in Blue
Located on an island between The Marrows and Gale Cliffs.
Wants a Blue Mackerel, Tiger Mackerel, and Snake Mackerel (found near Devil's Spine).

Figure in Yellow
Located on an island between Gale Cliffs and Stellar Basin.
Wants a Red Snapper, Fangtooth (requires Abyssal equipment), and Blue Crab.

Figure in Purple
Located on an island between Stellar Basin and Twisted Strand.
Wants a Tarpon, Horseshoe Crab, and Barreleye.

Figure in Red
Located on an island between Twisted Strand and Devil's Spine.
Wants a Cusk Eel, Sailfish, and Frilled Shark.

Safe Haven

Visit every dock in the game.

There are four campsites circled that are not normally shown on the map.


Gale Cliffs Campsite, found on the Southside.


Stellar Basin Campsite, found on an island between Gale Cliffs and Stellar Basin.


Twisted Strand Campsite, found on the northside.


Devil's Strand Campsite, found on an island between Devil's Strand and Gale Cliffs.

Completion

Careless Harvesting

Deplete 25 harvesting spots. Depleted spots WILL regenerate, just slowly.

Lives for Profit

Sell $2500 worth of fish.

Cash for Gold

Sell $1500 worth of trinkets, will come quickly in the Spine.

Unwanted

Discard 25 fish.

Trapped by These Walls

Catch 100 crabs in crab pots.

Tangled in This Web

Catch 150 fish in trawl nets.

Master Angler

Catch all types of fish.
https://steamcommunity.com/sharedfiles/filedetails/?id=2956992099 I recommend Lariasta's encyclopedia if you're at a loss.

Aberration Attractor

https://steamcommunity.com/sharedfiles/filedetails/?id=2956364322 Catch all Aberration types. Borg2011 has a guide with many good tips, the most helpful to me was that Atrophy has a high chance of catching Aberrations.
Xiratava has a very good tip for the Aberrant Jellyfish, which is that Trawling works even if you are spinning in a circle. So if you find a spot where you successfully trawled a jellyfish, stay there and SPEEEEEEN!

From the Depths

Obtain all achievements.

The Pale Reach DLC

Feeding Time

Feed the "Narwhal".
Story Progression.

Icebreaker

Equip the Icebreaker
Story Progression.

Under The Ice

Finish the main quest of The Pale Reach.
Shatter the 4 popsicles, don't forget to dredge your reward.

Fresh Fish

Have 5 Ice Blocks in your cargo.
The Ice Machine can be found in the North side of the Ice Flow, marked with golden shimmers.

From The Black Depths

Catch the Colossal Squid.
Must be trawled. I found my first one next to the frozen behemoth, but the aberration in the general ice flow area. Seems uncommon, but not locked to any specific fishing spot.

Polar Angler

Catch all known species of fish in The Pale Reach.
Don't forget the Sleeping Shark, the new legendary fish. It can be found near the frozen behemoth.

Cold Corruptions

Catch all aberrations in the Pale Reach.
The colossal squid is a bit annoying because it's trawl only and pretty rare, but otherwise straightforward.

Frozen Favors

Finish all side quests in the Pale reach.
There's only 4 side quests and none of them are difficult.

The Iron Rig DLC

Missing Shipment

Deliver the missing shipment to the rig.
Story progression.

Remedial Apparatus

Equip the Siphon Trawler.
Story progression.

The Iron Ruin

Override the rig's defenses.
Oopsie-doopsie.

Enhanced Abilities

Upgrade all 3 basic abilities.

Shadowed Splashes

Have 5 Dark Splashes in your inventory.
Bump into oil bubbles or make mistakes while fishing in oily water.

Dark Custodian

Collect a total of 10 Dark Canisters.
Use the Siphon to clean up oil patches.

Gleaming Goliath

Evade that which stalks the disturbed sediment.
Reach high panic while in an oil patch to awaken the goliath then use banishment.

Hull: Industrial

Upgrade to the 5th tier hull.

Rig Architect

Build all levels of all buildings on the rig.

Exotic Exemplar

Catch any exotic aberration.
The lvl.4 Factory allows you to make Exotic Bait, use the Atrophy ability to guarantee an aberration.

Ancient Angler

Catch all known species of fish in The Iron Rig.

Primordial Deviations

Catch all aberrations in The Iron Rig (excluding exotics).
You ONLY need the aberrations from The Iron Rig (marked with the yellow border), does not count base game or Pale Reach.
Fish #230 is an exotic and DOES NOT count for this. I was able to catch #230 using Aberrated bait north of the rig, though it may be possible in any Oceanic area.

[boguszxx]

Thanks

[Sev3nBelow]

Thanks for the guide

[Harry]

Thanks for the help!

[Forgotten Lands]

@Toast if you look at your achievements page and open Global Stats, it will list all achievements including hidden ones. The ones you don't have will be greyed out

[Toast]

so I think I've completed just about every achievement on this list, but I still have one more hidden achievement, along with From the Depths, and it's kinda driving me up a wall. What on earth am I missing?

[lechemoon]

@Forgotten Lands okay, thank you. i've never seen that before (or never noticed it) so i was a little confused

[Forgotten Lands]

@lechemoon in order to get 100% of the achievements, the DLCs are required.
This is pretty standard for games on Steam.

[lechemoon]

do i need the dlc to 100% the game? im confused why the dlc achievements are listed in the base game achievement list on steam when i don't own any of the dlc

[Kyutsune | GIFT x0.9 | Key 30K]

thanks for the info appreciate it

[Forgotten Lands]

@Kyutsune if you go to the Global Achievements tab it will show any achievements you don't have as greyed out, but will show their details.
However the Iron Rig DLC is adding 12 new achievements, so 48/60 is the current max