Here is the full list of all 16 AWAY: Journey to the Unexpected achievements.
Agree to let the frog live with you
Tip the shopkeeper
Have 4 playable characters at the same time
Start a fifth game after dying
Start a fifteenth game after dying
Buy 2 items from the shop during the same game
Open the factory gate for the first time
You have 999 coins
Find a secret passage in a dungeon
Unlock the guard and strong blow abilities
Talk to the cat 3 times
Unlock the desert access grid
Recruit 3 characters
Recruit all playable characters
Find your parents
Defeat the final boss