King Slime Spawning

[xXPERT_HUNTERx]

Is there anyway to spawn king slime pre-hardmode

[Yukuhiro]

Slime Crown

[ItsMeRaulM]

there is also a chance for it to spawn by itself it has a 1/300 chance to happen from a random slime

[iSmile02]

Originally posted by BlazingCatz:

there is also a chance for it to spawn by itself it has a 1/300 chance to happen from a random slime

I'm pretty sure it only spawns on it's own when you're in the Ocean biomes. Unless that changed in 1.3

also hello xpert didn't expect to see you here.

[Apollyon]

slime crown crafted at demon alter/blood alter 99 gel and a gold/plat crown

[RedEagle3]

Originally posted by Space Dorito:

slime crown crafted at demon alter/blood alter 99 gel and a gold/plat crown

20 gel and a gold crown

[Kamen Kreuz]

Originally posted by iSmile02:

Originally posted by BlazingCatz:

there is also a chance for it to spawn by itself it has a 1/300 chance to happen from a random slime

I'm pretty sure it only spawns on it's own when you're in the Ocean biomes. Unless that changed in 1.3

also hello xpert didn't expect to see you here.

It's anywhere in the two outer thirds of the map. In other words, anywhere not in the middle 33% of the map.
Also if you kill a lot of slimes during Slime Rain.

[Polly]

[ TAKEN DIRECTLY FROM http://terraria.gamepedia.com/King_Slime ]

Random spawning

King Slime has a 1 in 300 chance of spawning in place of another slime if the following conditions are met:

• The player is located in the two outer thirds of the map (the far left or far right).
  
• Depth is above zero. It may spawn slightly below the surface, though, as the average ground level is higher than that.
  
• There must be standard, green grass at its potential spawn point (off-screen; see NPC spawning)
  
  

  Slime Rain

  
  If 150 slimes are killed by players (lava, etc kills don't count) during the Slime Rain event, King Slime will spawn. Defeating the boss will end the event shortly after - if all players die, the boss will leave and the event will continue for some time before ending on its own. If the King Slime has already been defeated on a world, it will only take 75 slime kills to spawn the King Slime.