Arcalis Bosses
Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.20.1 on Forge. On other versions it may install and then do nothing.
This mod uses GeckoLib 4.4 animation mod.
Are you ready for the biggest challenge in minecraft? If so, this mod is for you!
This mod adds new, exciting and demanding fights with bosses that will test your skills and agility.
Each boss can be summoned in a special structure and has unique abilities, tactics and rewards that will force you to change your way of playing.
Bosses:
- Jack
When you find his castle in the woods you can summon him by placing his puppet on the altar. When you do that the puppet will turn into a haunted jester called Jack. He plays with u using his magic abilities and powerful poison daggers.
Attacks:
- Basic Stab
Basic fast dagger attack when you get to close.
- Dash Slice
He will dash towards your location cutting through everything dealing massive damage.
- Daggers Throw
He will throw his daggers at you and apply poison.
- Disappearance
If he gets hit while this ability is active he will disappear and leave a Jack in a box behind him to attack you.
- Cloning
He will beggin to laugh and then disapper for a second. He will then reappear with 3 clones of his own. If u attack the clone u will get slowness and blindness. If u attack the real one all the clones die.
- The Deathbringer
A Grim Reaper who is awaken by finding a graveyard and placing the cursed robe on the altar.
The cursed robe is crafted using cursed cloth shard which u can get by defeating Jack.
Attacks:
- Sideways Slash
The Deathbringer uses his netherite scythe to swipe forward and deal damage.
- Powerfull Cut
He puts his scythe into the air and performs a powerfull strike forward dealing massive damage.
- Magic Skeleton Summon
He calls for magic skeletons to come out of the ground and fight for him.
- Captain Deadbone
A pirate captain who is challenged by finding a pirate tavern and placing the cursed pirate hat on the table altar. The cursed pirate hat is crafted using cursed cloth shard which u can get by defeating Jack or The Deathbringer.
Attacks:
- Saber Slash
Captain Deadbone uses his pirate saber to swipe forward and deal damage.
- Trusty Crew
Captain encourages his crew to rush forward and attack his opponents.
- Barrel Brothers
Summons two explosive barrel skeletons.
Artifacts:
- Jack's Hat
- Jack Puppet
- Cursed Robe
- Bloody Skull
- Cursed Pirate Hat
-Captain Deadbone's Saber
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- 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 CurseForge — 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 arcalis_bosses-1.0.2.jar — drop this file into the mods folder
- Download size: 34.2 MB
- Download link checked 26 Sept 2026 — working
These come from our own check of the pack file, not from the source page.