Eater of Worlds

	Classic	Expert	Master	Legendary (For the Worthy)
Life	150	210	268	357
Attack	22	48	73	129
Defense	2	4	4	6
Knockback Taken	0% (None)	0% (None)	0% (None)	0% (None)
Coins	8	20	20	28

The last column is Master mode in a world made with the For the Worthy seed. Its numbers were measured in the game, not computed here.

For one player in a world before Hardmode. Expert and Master scale life, attack, knockback and coins by the game's own multipliers.

Coins: each kill rolls the coins from 80% to 175% of this value, then rarer extra rolls can add more.

3 variants

The game spawns this NPC in several forms that share its name. Each form has its own numbers.

Classic

Variant	Life	Attack	Defense	Knockback Taken	Coins
Variant 1 Size 100%	150	22	2	0% (None)	8
Variant 2 Size 100%	150	13	4	0% (None)	8
Variant 3 Size 100%	150	11	8	0% (None)	8

Expert

Variant	Life	Attack	Defense	Knockback Taken	Coins
Variant 1 Size 100%	210	48	4	0% (None)	20
Variant 2 Size 100%	210	21	6	0% (None)	20
Variant 3 Size 100%	210	18	10	0% (None)	20

Master

Variant	Life	Attack	Defense	Knockback Taken	Coins
Variant 1 Size 100%	268	73	4	0% (None)	20
Variant 2 Size 100%	268	31	6	0% (None)	20
Variant 3 Size 100%	268	26	10	0% (None)	20

How it appears

• Summon item: Worm Food. Use it in the Corruption.
• Without an item: Break every third Shadow Orb.

What beating it changes

• The Dryad can move in.
• Meteors can fall: the first defeat always sets one, later ones 1 in 2, and after that 1 in 50 each night.
• The Tavernkeep can be found.

Treasure Bag (Expert and Master): Treasure Bag (Eater of Worlds)

Classic

Item	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
Demonite Ore	20 to 60	100%			Classic mode only, when the enemy counts as a boss
Demonite Ore	2 to 5	1/2 (50%)	1	4	Not in Master Mode
Shadow Scale	1 to 2	1/2 (50%)	1	4	Not in Master Mode
Eater of Worlds Mask	1	1/7 (14.3%)	5	15	Classic mode only, when the enemy counts as a boss
Eater of Worlds Trophy	1	1/10 (10%)	7	22	Only when the enemy counts as a boss
Eater's Bone	1	1/20 (5%)	14	45	Classic mode only, when the enemy counts as a boss

Expert

Item	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
Demonite Ore	1 to 3	1/2 (50%)	1	4	Not in Master Mode
Shadow Scale	1 to 2	1/5 (20%)	4	11	Not in Master Mode
Eater of Worlds Trophy	1	1/10 (10%)	7	22	Only when the enemy counts as a boss

Also drops Treasure Bag (Eater of Worlds). See the bag for its contents.

Master

Item	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
Eater of Worlds Relic	1	100%			Only when the enemy counts as a boss
Demonite Ore	1 to 2	1/3 (33.3%)	2	6
Writhing Remains	1	1/4 (25%)	3	9	Only when the enemy counts as a boss
Eater of Worlds Trophy	1	1/10 (10%)	7	22	Only when the enemy counts as a boss
Shadow Scale	1 to 2	1/10 (10%)	7	22

Also drops Treasure Bag (Eater of Worlds). See the bag for its contents.

Chance is per kill. Kills for 50% and 90% is how many kills give that chance to see the item at least once.

Treasure Bag (Eater of Worlds) contents

The Treasure Bag drops in Expert and Master instead of most items above. Open it for:

Item	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
Demonite Ore	110 to 135	100%			In Master Mode Also given by another roll in this bag
Demonite Ore	80 to 110	100%			Not in Master Mode Also given by another roll in this bag
Shadow Scale	30 to 50	100%			In Master Mode Also given by another roll in this bag
Shadow Scale	20 to 40	100%			Not in Master Mode Also given by another roll in this bag
Worm Scarf	1	100%
Eater of Worlds Mask	1	1/7 (14.3%)	5	15
Eater's Bone	1	1/20 (5%)	14	45