ModsFinder

SCP-149, The Blood Flies

by Zcoper

SCP-149, The Blood Flies adds a small flying hostile mob whose bite can spread an infection that turns its victims into hosts for more of the creatures.

ForgeClient and serverAll rights reserved1.19.2 – 1.20.1

What it does

The mob appears on the surface of the overworld, usually in groups, and seeks out players and villagers as prey. Each bite carries a 50% chance to infect a target that has fewer than 12 armor points, and a lower 6% chance against targets with higher armor. Once a victim is infected, it lays eggs that grow into new flies, so an outbreak can keep spreading. Left unchecked, a swarm can reach far enough to overwhelm an entire village.

The mod requires Geckolib and is published for Forge only, across the 1.19.2 – 1.20.1 range with files for 1.19.2, 1.19.4 and 1.20.1. The latest file is 1.0.0 for 1.20.1, released 2026-06-10. Both the server and every player need it, and the code is built with MCreator and comes with a config file. The license is All rights reserved, so the mod is not open source.

Key features

  1. Infection by bite

    Bites from the flies can infect players and villagers, starting a chain in which victims become hosts for new flies.

  2. Egg-laying hosts

    An infected victim lays eggs that later hatch into new flies, so an outbreak can grow on its own.

  3. Surface swarms

    The creatures spawn on the surface in groups, which makes them a threat to exposed bases and villages.

  4. Config file

    A config file is included, so server owners can adjust how the mob behaves in their world.

Compatibility

Latest build for each game version and loader.

1.20.11.0.0
1.19.41.0.0
1.19.21.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 1

GeckolibA 3D animation library for entities, blocks, items, armor, and more!
Required

Questions

Does SCP-149, The Blood Flies require Geckolib?

Yes. Geckolib is a required dependency and must be installed alongside the mod on Forge.

Does the server need the mod installed?

Yes. A server running it needs every connecting player to have it too.

Which Minecraft versions have files for the mod?

Files exist for 1.19.2, 1.19.4 and 1.20.1, and the latest Forge file is 1.0.0 for 1.20.1.

In the catalog

SCP-149, The Blood Flies is one of 11,058 Mobs mods on ModsFinder, and one of 6,527 Mobs mods for Forge. 34,764 mods support Minecraft 1.20.1.

Mobs mods11,058Forge modsMods for 1.20.134,764

More from Zcoper

All projects
Thalassophobia1.19.2 – 1.20.1SCP-280, Eyes in the Dark1.19.2 – 1.20.1SCP-427, Lovecraftian Locket1.19.2 – 1.20.1SCP-096, The Shy Guy1.19.2 – 1.20.1Infectious - Zombie Apocalypse1.19.2 – 1.20.1SCP-173, The Sculpture1.19.2 – 1.20.1

Similar mods

[EMF] Entity Model Features1.18.2 – 26.3L_Ender's Cataclysm1.19.2 – 1.21.5Alex's Mobs1.16.5 – 1.20.1Guard Villagers1.16.5 – 26.3Touhou Little Maid1.16.5 – 1.21.1Creeper Overhaul1.18.2 – 1.21.1

What the author says

The Blood Flies adds a new entity. Its history comes from the SCP universe, where it is referred to as SCP-149, also known as the Blood Flies. These small but dangerous creatures spread rapidly and turn their victims into hosts. SCP-149 spawn naturally on the surface, often appearing in groups. They attack both…
Zcoper, on the Modrinth page

Official listing

Owner
Zcoper
Published
2026-06-10
Updated on Modrinth
2026-06-10
Facts verified
2026-10-15

Tags

Mobs
Open on ModrinthCompare