Full list of all 43 DAVE THE DIVER achievements. It takes around 15-20 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.
Caught 20 fish with melee weapons.
Bought First Interior Item.
Caught 10 fish with a Sniper Rifle.
Discovered the under-sea village.
Completed the Dolphin's request.
Entered the Deep Sea for the first time.
Picked up 100 items.
Researched 5 new dishes
Caught first shark.
Reached Bronze Level in Cooksta.
First time bringing Dave back from the brink of death.
Enhanced 5 dishes.
Completed the gun tutorial.
Fixed the Sushi Restaurant.
Made first equipment upgrade.
Trained employees to level 20.
Fed cat 20 times.
Captured 5 FishMon.
Collected all the blueprints.
Captured all of the Sea People murals.
Raised 5 GYAO!s.
Watched the ending credits.
Achieved Diamond rank in Cooksta.
Researched 30 new dishes.
Sold 200 items at workshop.
Bancho Sushi formed a branch restaurant.
Entered the Glacier Passage for the first time.
Fice field expanded to maximum.
Vegetable farm expanded to maximum.
Installed sprinklers in the garden.
Duwa's workshop opened.
Took 10 photos at Photo Spots.
Discovered the Glacier Passage.
Got to know Momo a little better.
Achieved Platinum rank in Cooksta.
Gumo's seeweed farm opened.
Enhanced gun 3 times.
Mima's restaurant opened.
Caught 300 fish.