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