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