It Follows

The mod is based on the cult classic film of the same name and introduces a paranormal stalker known as the Entity. A player picks up the curse by looting an urn in the Ancient Burial Chamber, a structure inside the Ancient City, and the urn is small, black and has a face on its front. The urn holds valuable loot, but taking it increases the chance of receiving the curse, which makes the player overly greedy for looting ancient cities.

Once cursed, the Entity follows the player across the world. It cannot be stopped or killed and pursues until the player dies. It can disguise itself as anything, including pigs, cows, horses, zombies, skeletons, creepers, Endermen and sometimes villagers, to get closer. Running across cliffs, rivers and water terrain, shutting a door, barricading it or building a tower only slows it down. Only the cursed player can see it, and it can still interact with people even though it is not physically present for others.

The curse can be passed to another person. The player brews a potion of spreading at a brewing stand using echo shards, then must hand it to someone. Once the curse is passed, the Entity follows that person instead. The original player remains able to see the Entity but is no longer its target, so a player hoping to be free must pass it on before the next victim is caught. The mod requires Architectury API. Servers that run it need every player to install it too. Files are published for Fabric and NeoForge for 1.21.8, under a custom license, and the code is not open source.