Here is the full list of all 38 Castaway Paradise Complete Edition achievements.
Read 50 chit chats
Remove 50 weeds
Harvest 50 crops
Donate a collectable
Make a profit of 2000 gems at the Bank
Used every piece of equipment
Rebuild the Lighthouse
Unlock the second room in your house
Completed 100 quests
Rebuild Harold's Museum
Rebuild Angus' Trailer
Collect 25 pieces of garbage
Rebuild Victoria's Mansion
Rebuild Francis' Pirateshack
Unlocked a gate
Rebuild Amelia's Planehouse
Rebuild Gustave's Bakery
Completed 25 quests
Rebuild a bridge
Remove 25 stones
Get your first collectable
Completed the tutorial
Changed every piece of outfit
Wore an outfit of the opposite gender
Donate 15 bugs
Donate all bugs
Donate 15 fish
Donate all fish
Donate 15 shells
Donate all shells
Donated every collectable
Make a profit of 500 gems on the Stock Market
Make a profit of 5000 gems on the Stock Market
Grow every type of fruit
Grow every type of flower
Grow every type of crop
Remove 25 cobwebs
Live the luxury life of a VIP