Crimson Curse: Infection
by HAILFIRE5445
With Crimson Curse: Infection installed, a virus left in the Crimson Forests of the Nether spreads into the Overworld and transforms the landscape and the creatures in it.
What it does
The mod turns the infection into a progressing threat. The virus begins dormant in the Crimson Forests, escapes through ruined portals long ago and reaches the Overworld, where fungi and plants adopt it into a branch of multi-cellular life. Once a world has run for five days after its first start, Bloodlinks begin spawning and transforming the terrain around them. Each one takes up a suitable spot, draws nutrients, protects itself and reproduces, and a server owner can control which phase of the infection a world reaches.
Bloodlinks are the main hazard. Their Bloodlink Power gives nearby Crimson mobs boosts to attack damage and movement speed, and damaged entities with the maximum health effect have their current health set down instead of recovering. Infected mobs drop Infected Flesh. Players who ignore the spread for a long time find it grows into a near-unstoppable snowball, so destroying Bloodlinks early is the usual response. The mod requires Polytone, Sodium, [EMF] Entity Model Features and [ETF] Entity Texture Features, and it is released under All rights reserved, so it is not open source.
Key features
Progressive infection
The infection spreads in phases over a world's lifetime and reaches a Mass Threshold that the server can set.
Bloodlink spread
Bloodlinks spawn, drain nutrients to protect and reproduce, and reshape the surrounding land.
Crimson mob boosts
Crimson mobs gain attributes and abilities from Bloodlink Power, though axis mobs, raidlinks and titans are not affected.
Infected Flesh drops
Infected mobs drop Infected Flesh, a material that can be used in progression.
Vanilla-compatible start
Players can begin with vanilla gear, since killing the new mobs gives access to the crafting materials they need.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 4
How it compares
Crawling Chaos is a Fabric-only client and server mod for 1.21.4 – 1.21.5, open source under the GNU Affero General Public License v3.0 only. FNAF VIRUS MOD covers Fabric, Forge and NeoForge 1.20.1 – 26.2 under a custom license and is not open source. No More Curses runs with the server required and the client optional across Fabric, Forge, NeoForge and Quilt, for 1.21 – 1.21.6, under the Creative Commons Attribution Share Alike 4.0 license.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Crimson Curse: Infection | Fabric, Forge, NeoForge and Quilt | 1.21 – 1.21.8 | Server required, client optional | 2026-05-15 |
| Crawling Chaos | Fabric | 1.21.4 – 1.21.5 | Client and server | 2025-05-10 |
| FNAF VIRUS MOD | Fabric, Forge and NeoForge | 1.20.1 – 26.2 | Client and server | 2026-08-01 |
| No More Curses | Fabric, Forge, NeoForge and Quilt | 1.21 – 1.21.6 | Server required, client optional | 2025-06-30 |
Questions
Does Crimson Curse: Infection need Polytone and Sodium?
Does the server need the mod?
Which loaders and versions are supported?
In the catalog
Crimson Curse: Infection is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 17,695 mods support Minecraft 1.21.8.
Similar mods
What the author says
A virus dormant in the Crimson Forests of the Nether escaped to the Overworld long ago, back when the now-ruined portals littering the world were still lit. In this new, much cooler environment, the virus, initially only being a threat to fungi, developed a powerful symbiotic relationship with the vanilla Zombie…
Official listing
- Modrinth page
- modrinth.com/mod/crimson_curse
- Owner
- HAILFIRE5445
- Published
- 2025-04-06
- Updated on Modrinth
- 2026-05-15
- Facts verified
- 2026-10-15