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