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