Heres

He's watching.
This mod adds a entity who will constantly follow you while you sleep, eat, or mine resources.

lore.
In the dark world of Minecraft, where every step could be your last, a terrifying mod called "Heres" appears. In this mod, the player finds themselves in a world shrouded in fog and darkness. With each passing minute, the atmosphere becomes increasingly oppressive: rustling and whispering sounds fill the space, and the shadows seem alive.

The mod's main feature is the mysterious Observer, who watches the player from a distance. Sometimes, it even seems to move closer. The player must gather resources and build shelters, but every action can attract the Observer's attention.

The purpose of this mod is simply to play with the fear of always being watched. It's quite a psychologically oppressive mod.

This mod is appealing because in all similar mods, you quickly understand and see what should frighten you, and, consequently, you no longer feel afraid.