Blade Oil
by tnoctua
Blade Oil lets players coat weapons with oils that raise damage against particular groups of mobs, such as undead, arthropods or aquatic creatures.
What it does
Oils are crafted and then applied to a weapon by picking the oil up with the cursor and using it on the blade. Each oil targets a family of creatures, so a sword treated for one group deals more damage to those mobs while it lasts. Oil recipes are learned by collecting plants and mob drops, which ties the crafting to exploring the world rather than to a fixed progression path.
The oil families cover a wide spread of the game's mobs. Holy Oils work on undead, Insectoid Oils on arthropods, Davy Jones Oils on aquatic mobs, and Endspawn Oils on endermites, Ender Dragons, Endermen and shulkers. Hanged Man's Venom and a further group of oils target illagers, players and villagers. The mod is built on NModUtils, which provides the shared functions it calls, so that library must be installed alongside it.
Blade Oil is open source under the GNU Lesser General Public License v2.1 only, and its source code and issue tracker are public. It is published for Fabric and Quilt across seven game versions, 1.21.5 – 1.21.11, with 1.2.0 as the latest file for 1.21.11. Snapshot builds are also available. Servers that run it need every player to install it too.
Key features
Oils for weapons
Oils are applied to weapons to boost damage against a chosen group of mobs rather than all creatures equally.
Crafting and cursor pickup
Oils are crafted from ingredients, then picked up with the cursor to be applied to a weapon.
Recipes from collecting
Oil recipes are discovered by collecting plants and mob drops, so the crafting is tied to exploration.
Oil families by mob type
Separate oils target undead, arthropods, aquatic mobs, endspawn creatures and illagers with villagers and players.
Gallery
Compatibility
Latest build for each game version and loader.
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Preparing for undead and arthropod areas
A player heading into a dungeon full of undead or spiders can coat the weapon with the matching oil before the fight.
Aquatic exploration
Players working through ocean biomes can apply the Davy Jones oil to fight the aquatic mobs they meet there.
Who it’s for: Players who enjoy weapon customization and want combat choices tied to the enemies they face. Server owners can run it, since it is needed on both sides of a connection.
Questions
Does Blade Oil need Fabric API?
Do players and servers both need the mod?
Is there a version gap for Quilt?
In the catalog
Blade Oil is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from tnoctua
Similar mods
What the author says
Oil recipes can be discovered by collecting various items such as plants and mob drops. This mod requires NModUtils to function!
Official listing
- Modrinth page
- modrinth.com/mod/blade-oil
- Owner
- tnoctua
- Published
- 2025-06-03
- Updated on Modrinth
- 2025-09-30
- Facts verified
- 2026-10-15