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