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Swarm Infection
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Swarm Infection

Java mod listed for Minecraft 1.20. File opened and checked on 5 Oct 2026; downloads from the MC Java Mods app on Android.

by Clock_Jamers_Official · on CurseForge

⬇ Download on CurseForge

The author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.

Swarm Infection — screenshot 1Swarm Infection — screenshot 2Swarm Infection — screenshot 3Swarm Infection — screenshot 4Swarm Infection — screenshot 5

Mod adds Infection of the Swarm Meteorite drops on earth, carrying Swarmers Swarmers are amalgamations made up with flesh of the aliens they had assimilated. Swarmers attack any living creature, dissolving their flesh and turning it into biomass, they then merge with that biomass and become Amalgamated Amalgamated can evolve and create more swarmers

the mod adds a point system that increases with actions of Swarm Infection Higher the phase, higher the difficulty

Mod has multiple tiers of mobs

Swarmers: the start of the infection, they attach themselves to the mobs and merge with them

Amalgamated: the result of swarmer merging with their victim, can evolve into different variations

Grown: evolved variants of Amalgamated they get new abilities and strengths, can grow even bigger after killing enough mobs

Overgrown: even stronger variants of Grown, they mostly have the same abilities, but they are better or some of the overgrown could have new attributes

Nodes: mass of biomass that spread around the ground they can grant the Infection poition effects to make them stronger

Leviathans: created from nodes, they are large constructs of biomass that destroys everything on their path they act as main bosses of the infection

Point system

When the infected kill something, evolve, or create more of themselves they gain points with certain threshold it will increase the phase

phase 0 before the infection start no infected spawn you cannot go back to phase 0

phase 1 will trigger after the meteorite crashes on spawn swarmers will naturally spawn

phase 2 more swarmers spawn amalgamated start to spawn naturally leaders have a chance to spawn instead of a normal variant

phase 3 some infected gain permanent effects grown start to spawn

phase 4 gained permanent effects are stronger Overgrown start to spawn naturally Nodes may start to spawn after overgrown kills enough mobs

phase 5 even stronger gained effects nodes start to spawn really rarely there must be an 800 block distance from another node to spawn another node from overgrown kills

phase 6 nodes can now start spawning leviathans

Quick facts

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

These come from our own check of the pack file, not from the source page.

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