Addon: The Unseen Six
The Unseen Six is a Bedrock horror pack centered on six unsettling entities. Their presence changes the rhythm of ordinary survival: quiet moments become warnings, distant silhouettes deserve attention, and familiar areas no longer feel completely controlled.
Author: simple_old_ahmed

The experience relies on uncertainty. Some things can remain at the edge of the world or the player's view, while other threats become more dangerous when they are ignored. The result is a compact horror scenario that can be added to an existing survival world without replacing its basic objective.
The addon works on Minecraft Bedrock 1.21 and newer. Beta APIs are required and must be enabled in the world settings before the pack is used.
Because the original release keeps the identities and behavior of the six creatures deliberately vague, discovery is part of the experience. Enter the world prepared for unexpected sightings instead of treating every encounter as a conventional boss fight.
How to install the add-on
Download the .mcaddon or .mcpack file, open it with Minecraft and wait for the import to finish. Then enable the resource and behavior packs in the world settings. If the add-on requires experiments, turn them on before launching the world.