
There are several ways to summon King Slime in Terraria. One way is to use the Slime Crown, which can be crafted from 20 gel and a Gold Crown (or 99 gel and a Platinum Crown, according to another source) at a Demon Altar. This will allow you to summon King Slime at any time and in any biome. Another way to summon King Slime is to increase the likelihood of his random appearance. King Slime has a 1/300 chance of spawning naturally if the player is located in one of the outer lateral sixths of the map (the far left or far right), above elevation 0, during the day, and in a grassy area with standard green grass. Using a Water Candle in your hand will increase the chances of King Slime spawning by 0.48%.
| Characteristics | Values |
|---|---|
| King Slime spawn chance with Water Candle | 0.48% higher |
| King Slime natural spawn chance | 1% or 1/300 or 0.33% |
| King Slime spawn conditions | Player in the outer lateral sixths of the map (far left or right); depth above zero; daytime; standard green grass at spawn point |
| King Slime manual summon | Use Slime Crown |
| King Slime spawn on slime rain | 150 slimes killed; 75 if King Slime has been defeated before |
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What You'll Learn

Using a Water Candle increases the chance of King Slime spawning by 0.48%
The King Slime is a boss in the video game Terraria. It is a rare spawn with a 0.33% chance of appearing naturally. It can be summoned by using the Slime Crown, which can be crafted from 20 gel and a gold or platinum crown at a Demon Altar.
To increase the chances of King Slime spawning, players can use a Water Candle, which increases the spawn rate by 0.48%. The Water Candle must be held in the player's hand to take effect. This method can be combined with other strategies to further increase the chances of King Slime appearing.
One such strategy is to make a new, small map and get to the edge of the home biome, stopping at the last grassy area before a new biome begins. This is because the King Slime spawns in the outer lateral sixths of the map, so being at the edge increases the likelihood of encountering it. Additionally, King Slime requires standard green grass to spawn, so ensuring you are in a grassy area is important.
Another strategy to increase the chances of King Slime spawning is to build a Sky Bridge to the end of the world. Players can then plant a Grass Seed and wait for it to grow, or use the Staff of Regrowth to save time. Standing at the edge of the world increases the chances of King Slime spawning as the player is farther from the spawn point.
By using a combination of these strategies, such as holding a Water Candle and positioning themselves at the edge of the world, players can increase the chances of encountering the rare King Slime.
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The player must be in the outer lateral sixths of the map
To summon King Slime, the player must be in the outer lateral sixths of the map. This means that the player must be in either the far left or far right portions of the map. In other words, the player should be far enough from the centre of the map that bunnies never spawn and goblin scouts do spawn. This is because the game checks if its potential spawn point is at least a third of the world's width away from the world spawn, which translates to the outer lateral sixths of the world in normal worlds.
King Slime has a 1/300 (0.33%) chance of spawning naturally if the player is in one of the outer lateral sixths of the map. This is a rare occurrence, and some players have only seen it happen once in their gaming experience. To increase the chances of King Slime spawning, the player can use a Water Candle, which gives a 0.48% higher chance of spawning. Another strategy is to build a Sky Bridge to the end of the world and stand at the edge of the world, as this increases the chances of King Slime spawning as the player is farther from spawn.
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The spawn point must be above elevation 0
To increase your chances of summoning King Slime with a water candle, you must ensure that the spawn point is above elevation 0. This means that you need to be on the far left or far-right portions of the map, in a grassy area, and above sea level. Regular grass is required, not jungle grass.
Being in this location will increase your chances of summoning King Slime, as it is one of the conditions for the slime to spawn naturally. The other conditions include the time of day being daytime, and the player not being in a Graveyard biome.
If you are far enough from the centre of the map that bunnies never spawn and goblin scouts do spawn, then you are far enough away for King Slime to spawn. You can build a safe waiting area with tiny lava pits on either side to kill off other enemies—the King Slime will be too large to fall into them.
Using a water candle will increase your chances of spawning a King Slime by 0.48%. You can also use a Battle Potion, or both, to further increase your chances.
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It must be daytime
To increase your chances of summoning King Slime, it is recommended that you use a Water Candle. This will increase your chances of spawning a King Slime by 0.48%.
To summon King Slime with a Water Candle, it must be daytime. King Slime has a 1/300 (0.33%) chance of spawning naturally if the following conditions are met:
- The player is located in one of the outer lateral sixths of the map (the far left or far right).
- The depth at its potential spawn point is above zero.
- There must be standard, green grass at its potential spawn point.
- The player is not in a Graveyard biome.
If you are far enough from the center of the map that bunnies never spawn and goblin scouts do spawn, you are far enough away for King Slime to spawn. It is important to note that the grass must be regular grass, not jungle grass.
Once you have found a suitable location, it is just a matter of waiting. You can increase your chances of spawning King Slime by holding a Water Candle in your hand or using a Battle Potion.
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The spawn point must have standard green grass
To summon the King Slime, players must be in a grassy area with standard green grass, not jungle grass. This is because the King Slime has a higher chance of spawning on this type of grass. The spawn point must also be located in one of the outer lateral sixths of the map, either on the far left or far right, and above elevation 0. This means that the player should be far enough from the center of the map that bunnies never spawn and goblin scouts do spawn.
To increase the chances of spawning a King Slime, players can use a Water Candle, which gives a 0.48% higher chance of spawning. Another method is to build a Sky Bridge to the end of the world, plant a grass seed, and wait for it to cover the dirt. Standing at the edge of the world increases the chances of the King Slime spawning as the player is farther from the spawn point.
It is worth noting that the King Slime has a very low chance of spawning naturally, with odds ranging from 0.33% to 1%. Therefore, players may need to be patient and try multiple methods to increase their chances of summoning the King Slime.
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Frequently asked questions
To increase the chances of summoning King Slime, you need to be on the far left or far right portions of the map, in a grassy area, above elevation 0. Holding a water candle in your hand or using a Battle Potion (or both!) will help increase the chances of the King Slime spawning.
The Slime Crown is a boss-summoning item that can be crafted from 20 gel (99 on Console version) and a Gold Crown (or Platinum Crown) at a Demon Altar. The Slime Crown can be used to spawn King Slime in any biome at any time.
King Slime has a 1/300 (0.33%) chance of spawning naturally if the following conditions are met:
- The player is located in one of the outer lateral sixths of the map (the far left or far right).
- The depth at its potential spawn point is above zero.
- It is daytime.
- There must be standard, green grass at its potential spawn point.
Alternatively, if 150 slimes (75 if King Slime has been defeated before) are killed by players, NPCs, traps, lava, and/or summoned minions during the Slime Rain event, King Slime will spawn.











































