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