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