NPC
King Slime
- Boss
- Surface
Bestiary entry
Rarity:
Slimes normally aren't intelligent, but occasionally they merge together to become a powerful force to swallow all things.
- Lives in:
Surface - Achievements:
Gelatin World Tour, 
Slayer of Worlds, 
Slippery Shinobi - Spawns:
Blue Slime, 
Spiked Slime - Immune to:
Bleeding, 
Confused, Hemorrhage, 
Poisoned, 
Shimmering - Bestiary search words:
slime king
Stats by game mode
| Classic | Expert | Master | Legendary (For the Worthy) | |
|---|---|---|---|---|
| Life | 2,000 | 2,800 | 3,570 | 4,760 |
| Attack | 40 | 64 | 96 | 170 |
| Defense | 10 | 10 | 10 | 10 |
| Knockback Taken | 0% (None) | 0% (None) | 0% (None) | 0% (None) |
| Coins |  1 | 2 50 | 250 | 350 |
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.
How to fight it
How it appears
- Summon item:
Slime Crown. No time or place is needed. - Without an item: During Slime Rain, after 150 slimes are killed (75 once King Slime was beaten).
What beating it changes
- The
Nerdy Slime can move in.
Treasure Bag (Expert and Master): 
Treasure Bag (King Slime)
Drops
Classic
| Item | Quantity | Chance | Kills for 50% | Kills for 90% | Conditions |
|---|---|---|---|---|---|
 Solidifier | 1 | 100% | |||
 Slime Gun | 1 | 2/3 (66.7%) | 1 | 3 | Rolled only when the roll for Slime Hook (1 in 3) fails |
 Ninja Hood | 1 | 1/3 (33.3%) | 2 | 6 | One of 3 options is picked at random |
 Ninja Pants | 1 | 1/3 (33.3%) | 2 | 6 | One of 3 options is picked at random |
 Ninja Shirt | 1 | 1/3 (33.3%) | 2 | 6 | One of 3 options is picked at random |
 Slime Hook | 1 | 1/3 (33.3%) | 2 | 6 | |
 Slimy Saddle | 1 | 1/4 (25%) | 3 | 9 | |
 King Slime Mask | 1 | 1/7 (14.3%) | 5 | 15 | |
 King Slime Trophy | 1 | 1/10 (10%) | 7 | 22 | Only when the enemy counts as a boss |
 Slime Staff | 1 | 1/30 (3.33%) | 21 | 68 |
Expert
| Item | Quantity | Chance | Kills for 50% | Kills for 90% | Conditions |
|---|---|---|---|---|---|
| King Slime Trophy | 1 | 1/10 (10%) | 7 | 22 | Only when the enemy counts as a boss |
Also drops Treasure Bag (King Slime). See the bag for its contents.
Master
| Item | Quantity | Chance | Kills for 50% | Kills for 90% | Conditions |
|---|---|---|---|---|---|
 King Slime Relic | 1 | 100% | |||
 Royal Delight | 1 | 1/4 (25%) | 3 | 9 | |
| King Slime Trophy | 1 | 1/10 (10%) | 7 | 22 | Only when the enemy counts as a boss |
Also drops Treasure Bag (King Slime). 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 (King Slime) 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 |
|---|---|---|---|---|---|
 Royal Gel | 1 | 100% | |||
| Solidifier | 1 | 100% | |||
| Ninja Shirt | 1 | 66.8% | 1 | 3 | Share of simulated openings (the game picks this item in a re-roll loop) |
| Ninja Pants | 1 | 66.7% | 1 | 3 | Share of simulated openings (the game picks this item in a re-roll loop) |
| Ninja Hood | 1 | 66.5% | 1 | 3 | Share of simulated openings (the game picks this item in a re-roll loop) |
| Slime Gun | 1 | 1/2 (50%) | 1 | 4 | |
| Slime Hook | 1 | 1/2 (50%) | 1 | 4 | |
| Slimy Saddle | 1 | 1/2 (50%) | 1 | 4 | |
| King Slime Mask | 1 | 1/7 (14.3%) | 5 | 15 | |
| Slime Staff | 1 | 1/30 (3.33%) | 21 | 68 |
