BloodMarks
by hasteinMC
BloodMarks gives swords a blood effect and adds a Blood Instinct status that draws hostile mobs from a wider range toward the player.
What it does
Swords in the mod leave a blood effect on hit, and bloodstained weapons show the effect on their blades. Blood particles also appear on entities that are struck, so combat reads visually in a different way than in vanilla. Players who carry the Blood Instinct status find zombies, creepers, spiders and skeletons tracking them from a greater distance, and those mobs keep hunting the player over a wider area, which raises the danger of exploration and fights.
The mod is built around a harder, more hostile version of the game. Deep water is part of the challenge: swimming and dropping items into a water source are handled as obstacles, and cleansing a weapon in water is one way to face the threat head-on. Because the effects are tied to the Blood Instinct status, they apply in both single-player and multiplayer play. BloodMarks is a Fabric mod for 1.21.1 only, and it needs to be installed on the client and the server. Resource packs are compatible, and the mod is released under All rights reserved, so it is not open source.
Key features
Blood effects on swords
Striking with a sword produces a blood effect, and weapons can be bloodstained.
Blood Instinct status
The status extends the aggro range of zombies, creepers, spiders and skeletons, so they hunt the player across a wider area.
Blood particles on entities
Blood particles appear on entities, adding a visual layer to combat.
Water challenges
Swimming in deep water and dropping items into a water source are part of the difficulty, and cleansing a weapon in water is an option.
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: The mod suits players who want more danger from hostile mobs and a bloodier look in combat, and server owners who run a survival or horror-themed world on Fabric for 1.21.1. Both the server and every player need it.
How it compares
BloodMoons is a Fabric mod for 1.21.7, released under the MIT License, and it runs on client and server. blood mod covers 1.21.8 – 1.21.10 on Fabric, under the CC0 1.0 Universal license, and it also runs on client and server. Herd Instinct is open source under the MIT License and targets 1.21.1 – 1.21.11 on Fabric and NeoForge, but it is server required with an optional client, which differs from BloodMarks.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| BloodMarks | Fabric | 1.21.1 | Client and server | 2025-02-28 |
| BloodMoons | Fabric | 1.21.7 | Client and server | 2026-04-28 |
| blood mod | Fabric | 1.21.8 – 1.21.10 | Client and server | 2025-11-30 |
| Herd Instinct | Fabric and NeoForge | 1.21.1 – 1.21.11 | Server required, client optional | 2026-07-16 |
Questions
Does BloodMarks need to be installed on the server?
Which loader does BloodMarks use?
In the catalog
BloodMarks is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 32,366 mods support Minecraft 1.21.1.
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What the author says
Bloodmarks introduces an immersive twist to Minecraft gameplay by adding blood effects to all swords in the game, with seamless compatibility for resource packs. This mod brings a unique challenge with the "Blood Instinct" effect, intensifying the danger as zombies, creepers, spiders, and skeletons gain an extended…
Official listing
- Modrinth page
- modrinth.com/mod/bloodmarks
- Owner
- hasteinMC
- Published
- 2025-02-28
- Updated on Modrinth
- 2025-02-28
- Facts verified
- 2026-10-15