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