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