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SCP-966, The Sleep Killer

You won't have any sleep anymore if a Sleep Killer sees you as prey
by Zcoper
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372,699 downloads
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Updated Jul 6, 2026
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MCreator Mobs

Title



The Sleep Killer
adds a new terrifying creature. Its history comes from the SCP universe, where it is referred to as SCP-966, also known as The Sleep Killer.

SCP-966 are humanoid creatures that only become visible when a player is nearby. While they are relatively easy to defeat, their true danger lies in the Insomnia Effect they inflict on the player when they targets them. This effect prevents the player from sleeping, causing ongoing damage and constantly hearing the noises made by the Sleep Killers.

● A mod made by Zcoper
● Mod created with MCreator!
● Requires Geckolib:
   GeckoLib 1.19.2 Version
   GeckoLib 1.19.4 Version
   GeckoLib 1.20.1 Version

● Visit my Discord Server!
   https://discord.gg/akP56NtmVQ

 

● Important FaQ

[OLD] What is my console spaming?

Most mobs use special spawning conditions, which means that these mobs can only appear under certain conditions. If the spawning conditions work, this spam is created in the console.

► [OLD] Why can't I summon a mob?

Spawning Conditions determine which conditions must be met in order to spawn certain mobs. Some mobs only spawn above Y level 60. Some below. Most mobs can only spawn in the overworld than in other dimensions.

► Why are features missing in different versions?

It is recommended to play the newest versions of higher minecraft versions.

Not all features of MCreator available or the same in different versions.
For example: Version 1.19.2 doesn't have the feature of shield, better structure generation or custom villagers, but Version 1.20.1 does have them.

► Where does SCP-966 spawn?

SCP-966 can spawn above y 60 in the overworld like a normal monster. There can be multiple instances of SCP-966

 



 

SCP-966, Sleep Killer


SCP-966 are skeletal humanoid creatures that remain invisible until a player gets within 10 blocks of them. They are aggressive but are relatively easy to defeat. When SCP-966 attacks, players are inflicted with Slowness for 10 seconds. If SCP-966 targets a player, all players within a 16-block radius will gain the Insomnia effect. With Insomnia, you’re unable to sleep, leaving you vulnerable during the night. This effect only disappears once the SCP-966 that caused it is dead or stopped seing an player as target.



● Mods Origins:
   https://scp-wiki.wikidot.com/scp-966

 

● Config File not inculed.
● You are all allowed to use this mod in your modpacks!
● Do not port my mods without permission!


Check out my other Mods:
https://www.curseforge.com/members/zcoperfy/projects

SleepKiller-forge-1.19.2-2.4.jar
MC Client, Forge, 1.19.2, Server
Release 2026-04-04 Get

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