World_0

Instead of direct threats, World_0 builds tension through subtle staged events. Early on the world looks ordinary, but gradually it shifts: noises come from empty spots, something moves just outside the field of view, and the environment behaves in ways it should not. Chat-based horror events break immersion on purpose, and sky-watch and freeze and paralysis scenarios add further pressure, with major horror events that follow a progression.

The mod adds several custom dimensions that feel unnatural and disconnected from ordinary play, along with custom echo-type entities. Anomalies in mines produce phantom footsteps and distant mining sounds that keep the player unsure what is real. The rules stay clear even as the events grow strange, so the difficulty comes from doubt rather than from unfair mechanics.

World_0 runs on Forge only and is released under the MIT License, so the source code is open. Files exist for 1.20.1, and the latest file is 1.5, published on 2026-07-16. The mod was first published on 2026-05-03 and last updated on 2026-07-16. Because it runs on client and server, the server and every player need it.