Full list of all 43 DAVE THE DIVER achievements. It takes around 40-50 hours to unlock all of the achievements in the base game on Windows.
The base game contains 15 achievements, and there is 1 DLC pack containing 28 achievements.
Discovered the Glacial Passage.
Got to know Momo a little better.
Entered the Glacial Area for the first time.
Watched the ending credits.
Mima's restaurant opened.
Gumo's seaweed farm opened.
Duwa's workshop opened.
Collected all the blueprints.
Enhanced gun 3 times.
Captured all of the Sea People murals.
Caught 300 fish.
Fed cat 20 times.
Sold 200 items at workshop.
Installed sprinklers in the garden.
Raised 5 GYAO!s.
Took 10 photos at Photo Spots.
Captured 5 FishMon.
Rice field expanded to maximum.
Vegetable farm expanded to maximum.
Achieved Platinum rank in Cooksta.
Trained an employee to level 20.
Achieved Diamond rank in Cooksta.
Researched 30 new dishes.
Bancho Sushi formed a branch restaurant.