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