Omens of Darkness

Zombies can appear during the day and skeletons can turn up without a bow, and the ground quiets as music plays on. Strange entities that human eyes cannot see are caused by these changes. They hunt animals and attack players, and when one kills something it leaves a drop. Players can use several items to communicate with the entities.

The progression starts with a block made from cobblestone and rotten flesh. From there a Blood Essence is crafted, and that essence becomes a Blood Sickle. Killing a mob with the sickle drops Blood Faces, which are used to make Darkness. Darkness and Blood Essence combine into an eye, and cobblestone with Darkness makes an altar. Placing the eye on the altar calls the entities to help there. The mod is for Forge on 1.12.2 and runs on the server side only, so players join without installing it. It is published under All rights reserved and is not open source.