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