
Ivar's Bosses
Java mod listed for Minecraft 1.21. File opened and checked on 14 Oct 2026; downloads from the MC Java Mods app on Android.
Ivar's Bosses is a mod that introduces formidable bosses to the game, featuring unique attack patterns and special summoning rituals. These ancient…
⬇ Download on Modrinth





Features
Currently, the mod adds four new bosses:
Fang – The mighty guardian of the forest. He can be summoned at night by lighting three campfires in a triangular formation and feeding a bone to a tamed wolf in the center.
Spider Mother – She will block your path deep within the jungle, possessing the ability to spawn cave spider minions. You can awaken her by eating a Spider Eye at night.
Fenrir – The spirit of a crystal wolf, sealed away by the magic of amethyst caves. He can be summoned through an alchemical ritual by mixing 16x Sugar and 8x Pink Dye, then stirring the mixture with water. Note: He can only be summoned in the amethyst caves from the "Infinity Cave" mod or the pink salt caves from the "Galosphere" mod (these mods must be installed separately if you want to summon Fenrir).
Dracula – The most dangerous boss of them all. You will encounter him in the deepest layers of caves where sunlight never reaches. He is brought into the world by transmuting a bat that is killed with a bow and arrow at night below Y-level 30
Additionally, the vanilla bosses — the Warden and the Ender Dragon— have received colossal overhauls and updates.
Author: ivarnvim (Discord / Boosty)
Video Review
From Creator
Thank you for playing my mods! I'm very happy to see people enjoy my hobby. You can also support me by donate on Patreon and buying my artworks if you want. Your support can keep me motivated to continue developing my mods.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as Ivar's Bosses-1.0.0.jar — drop this file into the mods folder
- Download size: 818 KB
- Download link checked 10 Oct 2026 — working
These come from our own check of the pack file, not from the source page.