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