CurseForge · Minecraft mod
Frostmourne
Frostmourne: Sorrow of Ice A dark-fantasy mod for Minecraft 1.21.1 (NeoForge). A cursed blade, a fallen king, and three bosses with stories of their own.
Quick answer
Which Frostmourne release should I use?
frostmourne-2.7.0.jar targets 1.21.8, 1.21.5, 1.21.4 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Frostmourne required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does frostmourne-2.7.0.jar need?
frostmourne-2.7.0.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Frostmourne without breaking your instance.
Built for frostmourne-2.7.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use frostmourne-2.7.0.jar. It targets 1.21.8, 1.21.5, 1.21.4 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside frostmourne-2.7.0.jar. It opens that exact file at the source.
About this project
What does Frostmourne add?
What it's about
Ruins of fallen kingdoms appear in your world: the castle of Nordholm, the Kings' Crypt, a necropolis, temples of Light and Sun, and the Void Citadel. Villagers, spirits and the undead tell how King Artos fell and where his sword came from.
At the centre is the Frostmourne sword with 8 abilities on dedicated keys: Frost Nova, Soul Reap, Death Grip, an Army of the Dead, Frost Leap and more. It comes with a skill tree and a cooldown HUD.
Bosses
Lich King Artos. Master of the sword and the throne. A three-phase fight with ice rings, a soul beam, risen dead and cursed circles. He talks to you first, and the conversation changes if you've read The Legend of Artos.
Velkar, the Emerald Necromancer. Hovers over an open tome and commands bone acolytes, plague ghouls and a colossus. Fights with green fire and spells.
The Blood Duke. A vampire aristocrat who sleeps wrapped in his wings. Summon him at night with the Blood Seal. His fight is built to be beautiful: a waltz of spectral blades, a masquerade of shadow clones, a fountain of blood, strings of blood, a cyclone of bats, and an eclipse finale. He has his own soundtrack and boss bar, and drops 3D weapons and trinkets.
The Death Knight. A horned warrior in runic armor, which you can earn and wear.
Features
Three large bosses with phases, dialogue, animations and particles.
3D models, original music, generated structures.
Config options; Russian and English.
Project description from CurseForge.
Pick your setup
Frostmourne by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.3
1 loader build1.21.2
1 loader build1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Frostmourne versions and loaders
frostmourne-2.7.0.jar
frostmourne-1.20.1.jar
22 Oct 2026
frostmourne-2.6.0.jar
frostmourne-1.20.1.jar
22 Oct 2026
frostmourne-2.3.0.jar
frostmourne-1.20.1 (4).jar
20 Oct 2026
frostmourne-2.2.0.jar
frostmourne-1.20.1 (3).jar
20 Oct 2026
frostmourne-2.1.0.jar
frostmourne-1.20.1 (2).jar
20 Oct 2026
frostmourne-1.20.1.jar
20 Oct 2026
Looking for an older file? The official CurseForge project page is in Resources.