Here is the full list of all 30 Eastward achievements.
Complete the game.
Upgrade your backpack to its maximum capacity.
Complete Chapter 7.
Collect every ingredient in the game.
Upgrade your bomb and ammo boxes to their maximum capacities.
Obtain 1,000 salt from off a Salt Bug.
Try all five jobs with John.
Complete Chapter 6.
Defeat the Demon King in Earth Born.
Complete Chapter 5.
Complete Chapter 4.
Complete Chapter 3.
Obtain a "heart" from the people of New Dam City.
Learn all of Sam's abilities.
Interact with 100 different NPCs.
Defeat an enemy while it's being controlled by Sam.
Interact with 50 different NPCs.
Complete Chapter 2.
Complete Chapter 1.
Cook your first dish.
Obtain a Pixball.
Defeat an enemy using clutter from off the ground.
Open all the treasure boxes in the game.
Reach max hearts.
Upgrade all weapons to their max levels.
Complete the true ending in Earth Born.
Collect at least 1 of every type of Pixball.
Collect every single Pixball.
Collect every recipe in the game.
Eat every food item in the game.