From The Fog Wiki

From The Fog is a horror addition that turns an ordinary survival world into a slow-burn ghost story built around the legendary Herobrine. Rather than a boss you fight immediately, Herobrine is a patient stalker who haunts your world over many in-game days. He appears only for a moment, stays at the edge of your vision, and messes with your world while you are away, so the horror builds through atmosphere and paranoia long before anything ever attacks you. Because everything is data-driven, you simply keep playing normal survival and the world grows more haunted around you.

The experience is designed as a gradual escalation across three loose stages:

Stage 1 - Signs

Early on you almost never see Herobrine directly. Instead you notice that something is wrong: torches and light sources go missing so lit areas fall dark, small sand or gravel pyramids and 2x2 tunnels appear, trees get chopped down, holes are dug near your base, and strange redstone or gold-block markers are left behind.

Stage 2 - Sightings

Herobrine begins to show himself for a split second at the far edge of your render distance - standing in the fog across a field, watching from a hilltop, or peering out of a cave - and vanishes the instant you look directly at him. Footsteps, cave ambience, and unexplained sounds play with no source, and a thick fog often rolls in when he is near.

Stage 3 - The Chase

Over time he grows bolder, lingers longer, and edges closer. Eventually he stops running and comes after the player directly, turning the late game into a genuine chase where the myth finally becomes a real threat.

Herobrine is rendered as a Steve-like figure with blank, glowing white eyes, faithful to the classic creepypasta look. He behaves like an intelligent presence that studies you, alters your world, and reveals himself on his own schedule, rather than a normal monster that spawns and rushes in. The effect is strongest when you play blind and at night, in a long survival world where the sense of being watched can grow naturally over many sessions.

• Play at night and avoid spoilers - the dread relies on not knowing when he will appear.
• Keep note of small changes around your base (missing torches, odd holes, new dirt structures); they are the earliest warning that the haunting has begun.
• The experience shines in a long-running survival world rather than a fresh test world.
• It pairs well with a normal survival playthrough; you do not need to build anything special to trigger it.

This release is available in two forms so you can use whichever you prefer:

• Mod (.jar) - a self-loading version that works on both the Fabric and NeoForge loaders. Place the jar in your mods folder and it applies to every world automatically.
• Data Pack (.zip) - drop the zip into a single world's datapacks folder to enable the haunting only in that world.

Does it need any other mods? No - it is self-contained. Will it break my world? No; it only adds behavior and can be removed again. I do not see anything happening. That is intended early on - the haunting starts subtle and escalates over many in-game days.