Full list of all 48 DREDGE achievements. It takes around 15-20 hours to unlock all of the achievements in the base game on Windows.
The base game contains 40 achievements, and there is 1 DLC pack containing 8 achievements.
Catch 150 fish in trawl nets.
Obtain all other achievements.
Catch all known species of fish.
Catch all aberrations.
Spot a fish of each category through your Spyglass.
Research all pots.
Complete all side quests. One way or another.
Discard 25 fish.
Solve all fish shrine puzzles.
Research all nets.
Research all engines.
Use Mixed Bait to attract 3 different species to a single spot.
Throw it back.
Use Atrophy on a fishing spot a long way away.
Banish 10 threats.
Visit every dock in the game.
Sell a total of $1500 worth of trinkets.
Find a use for the relics.
Give up the Pocket Watch.
Have a combined light strength of 3000 lumens.
Relinquish the Necklace.
Upgrade to the 4th tier hull.
Have a combined engine speed of 75kn.
Catch 100 crabs in crab pots.
Entrust the Ring.
Have a combined fishing speed of 200%.
Research all rods.
Upgrade to the 3rd tier hull.
Catch 250 fish using rods.
Traverse a long distance using Manifest.
Surrender the Music Box.
Upgrade to the 2nd tier hull.
Sell a total of $2500 worth of fish.
Keep your Haste burn meter above 50% for 10 seconds.
Have a full cargo.
Install equipment into every slot on your ship.
Deplete a total of 25 fishing spots.
Deliver the Key.
Hear a Foghorn echo.
Complete the introduction quest.
Catch all aberrations in The Pale Reach.
Catch all known species of fish in The Pale Reach.
Have 5 ice blocks in your cargo.
Finish all side quests in The Pale Reach.
Catch the Colossal Squid.
Finish the main quest in The Pale Reach.
Equip the Icebreaker.
Feed the Narwhal.