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