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