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