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