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