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