T0: Mirror Void
by nanoezzka
T0: Mirror Void is a Forge horror mod for Minecraft 1.20.1 that changes a world slowly, one observation at a time, instead of relying on jump-scares.
What it does
A persistent entity called T0 tracks how the player moves, builds and spends time, and gradually begins to overwrite parts of the game. The author describes the experience as meta-horror, where the line between the game and reality blurs. Players may catch glimpses of T0 at the edge of the screen and find gifts it left behind, so the unease builds over a long session rather than arriving in a single scare.
The mod uses a real-time scanning system to copy the player's own buildings. A player who walks far from home may find an exact, corrupted replica of the base standing in the middle of the terrain, which looks like the original and feels wrong. Distorted sounds, whispers and system glitches respond to the player's actions. The server and every player need the mod installed. Files are published for Forge 1.20.1 only.
Key features
Slow-burn paranoia
The horror develops over time as the player realizes that the world is no longer fully under their control.
Cloned buildings
A real-time scanner copies the player's constructions, and a corrupted replica can appear far from home.
Russian voice acting
Entity voices and scripted sequences use original Russian voice acting, delivered in a cold, distorted tone.
Audio and system glitches
Whispers, distorted sounds and fake critical errors react to the player's actions and the screen can fade.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players who want a slow, psychological horror experience on a Forge 1.20.1 world, alone or on a server. The author suggests it for players who can handle long-running tension without a series of scares.
How it compares
World_0 is open source under the MIT License, client and server, for Forge 1.20.1. Mirror Horror Project is also client and server on Forge 1.20.1 but is licensed as All rights reserved. D3dykcea's Horror Structures is server-side only, so players can join without installing it, and it is also All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| T0: Mirror Void | Forge | 1.20.1 | Client and server | 2026-04-14 |
| World_0 | Forge | 1.20.1 | Client and server | 2026-07-16 |
| Mirror Horror Project | Forge | 1.20.1 | Client and server | 2025-06-30 |
| D3dykcea's Horror Structures | Forge | 1.20.1 | Server-side only | 2026-03-07 |
Questions
Does Mirror Void need to be installed on the server?
Which Minecraft version does Mirror Void support?
Under which license is Mirror Void released?
In the catalog
T0: Mirror Void is one of 7,555 Cursed mods on ModsFinder, and one of 3,426 Cursed mods for Forge. 34,764 mods support Minecraft 1.20.1.
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What the author says
T0: Mirror Void is a meta-horror experience for Minecraft that blurs the line between the game and your reality. This mod isn't about jump-scares; it's about the slow, agonizing realization that you are no longer the master of your own world. 🌑 The Entity: T0 Something has entered your code. T0 is a persistent…
Official listing
- Modrinth page
- modrinth.com/mod/t0-mirror-void
- Owner
- nanoezzka
- Published
- 2026-04-14
- Updated on Modrinth
- 2026-04-14
- Facts verified
- 2026-10-15