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