The Shadow in Nightmare Add-on 26.30+/26.11+/26.10+/26.0+/1.21+

The main threat of the mod The Shadow in Nightmare is an immortal entity called the Shadow, which gradually turns survival into a real nightmare in Minecraft. After it appears in the world, strange events and visual glitches will begin to occur. When the Shadow uses its finishing attack, the player is taken to its dimension. From there, you can try to escape by moving away from the entity, but in the end it will still consume its victim.

The first 1-3 days may seem normal, but strange phenomena will begin to appear in the following days.