Terraria Wiki → Slime Rain
Slime Rain is an event added in update 1.3. It lasts for one in-game day. The event can start at any time, with the message "Slime is falling from the sky!" displayed. During the event, green, blue, purple, and pink slimes will fall from the top of the screen.
At the end of the event, a king slime will spawn if you killed 150 slimes during the event (or 75 slimes if a king slime was previously killed).
However, if you haven't killed the required number of regular slimes to spawn a king slime during the event, the event ends, and the message "Slime has stopped falling from the sky" appears, but the king slime does not spawn.
The initial chance of the event starting is ≈4.9% (in Hardmode, ≈3.3%). Additional conditions:
If the king slug has not yet been killed, the probability of the event starting is multiplied by 2;
At least 1 character in the world has 140 health and 8 defense.
In Expert Mode, this condition significantly reduces the chance of the event starting, rather than "disabling" it.
Notes
The event will not end if you exit the world.
During the event, all slimes become aggressive, but the Royal Gel will still make them friendly (except the Royal Slime and its minions).
Slimes killed by lava or traps do not increase the kill count for the King Slime summon.
It can continue simultaneously with other events, even at night.
Achievement
Upon completion of the event you will receive the achievement:
Sticky Situation
Author: MorganDK
See also: