Fungal Infection:Spore
by Harbinger
With Fungal Infection:Spore installed, infected humans appear in a new world and their bites spread a fungal infection that turns victims into infected themselves.
What it does
Infected humans spawn as a world is generated. A bite inflicts an infection, and a host that falls to it rises again as a member of the infection. The infection only spreads to other humans, and it is described as a bioweapon built to eradicate mankind. Its enemies grow stronger as they consume biomass, changing into new forms over time.
The infected mobs use improved AI compared with vanilla mobs. They gather into hordes, call for backup, form a hierarchy and work toward rebuilding a hivemind, an interconnected network of minds. The mod is aimed at players who want a harder vanilla game with new enemies and infection mechanics. Its files are for Forge and NeoForge across 1.19 – 1.21.1, and it is required by six other catalog mods, including Spore&Underground Bunker Spawner Compat and Spore inquisition. The mod is not open source and is released under All rights reserved.
Key features
Infected humans
Infected humans appear in new worlds and spread the infection through their bites.
Spreading infection
Bites inflict the infection, and a fallen host rises again as one of the infected.
Evolving mutations
Infected mobs change into stronger forms as they consume biomass.
Horde behavior
Enemies group into hordes, request backup and build a hierarchy under improved AI.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Required by 6 mods
Use cases
Harder survival worlds
Players who want more threats in vanilla survival can add an infection that spreads through the world.
Who it’s for: Players and server owners who want a more difficult vanilla game with new hostile mobs and an infection that spreads between humans.
How it compares
Nexus Infection is also a Forge and NeoForge mod for 1.20.1 – 1.21.1, installed on the client and server, and it is not open source under All rights reserved. Brainium is a client-required mod for 1.20.1 – 1.21.1 that the server can add optionally, released under the MIT License and not open source. Fungal Infection:Spore is client and server, with files for 1.19 – 1.21.1 and the same All rights reserved license.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Fungal Infection:Spore | Forge and NeoForge | 1.19 – 1.21.1 | Client and server | 2026-06-29 |
| Nexus Infection | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-10-09 |
| Brainium | Forge and NeoForge | 1.20.1 – 1.21.1 | Client required, server optional | 2026-09-13 |
Questions
Does Fungal Infection:Spore need to be installed on the server?
Which loaders does Fungal Infection:Spore support?
Does Fungal Infection:Spore require other mods?
In the catalog
Fungal Infection:Spore is one of 7,555 Cursed mods on ModsFinder, and one of 3,426 Cursed mods for Forge. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
- A Bioweapon gone wrong, this mod adds a hostile fungal infection to your peaceful Minecraft world. Face off against bloodthirsty mutated mycelium beasts as you fight back against a dormant bioweapon reawakened at the smell of fresh blood. Reemerging from centuries of slumber, this ancient project of a bygone era is…
Official listing
- Modrinth page
- modrinth.com/mod/fungal-infectionspore
- Owner
- Harbinger
- Published
- 2023-01-23
- Updated on Modrinth
- 2026-06-29
- Facts verified
- 2026-10-15