Description
Gallery
Changelog
Versions
note: older and currently unmaintained project!
If using the Datapack version, I recommend installing the >> Optional Resourcepack <<
Ultris has a Discord Server for getting help and discussing my mods! Click here to join.
About:
Ultris is a Minecraft Boss Expansion datapack that expands Minecraft with 8 new exciting bosses to take on, each with their own quests and rewards. Explore multiple new boss structures, special items, and new foes for you to take on.
Unique boss patterns, boss music, stages, sounds and visuals all come together to create these awesome bosses, from bosses that can spawn early game, to bosses for the end game player.
To summon the bosses with cheats, use /function 1_splatus:ultris/admin_menu and select the option "Summon Bosses"
Wiki:
Click here to visit the Ultris Wiki!
To view more info on bosses, you can check out the Ultris wiki by clicking the link above. The Wiki is not complete, but it can be completed faster with your help! If you'd like to contribute to the wiki, join my Discord Server, ping @limesplatus#4730 and I'll allow you access to editing.
Commands:
/function 1_splatus:ultris/admin_menu
License
For view of the entire license, click here. In summary, just dont republish this project or send modified copies to other people. You may modify it in singleplayer or in your own server. You are free to add this to modpacks as well.
Only one file is permitted to be edited in a public modpack, that being the mod's default settings file. This is helpful for modpack devs if they want certain features disabled from one of my mods. Join my discord if you need help locating this mod's default settings file.
Join the Discord Server to chat, discuss, and get help with my mods!
Help support the making of my datapacks with memberships or donations on Ko-fi!
https://ko-fi.com/limesplatus/tiers
Credits:
Creator/Programmer: • LimeSplatus#4730
Blaze King Music + Unused Shulker Stone Music: • humanoid#9099
Optimization Help: • Holmes (iRedSC)#0281
Multiple Blaze King Tower Rooms By: • the game master#0666 , • Just Fan Account#2495 • Frektip#4587 • Churner#6711
All Versions
+ Add Version| Name | Game version | Platforms | Published | Downloads | Actions |
|---|---|---|---|---|---|
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
| 21h ago | 1 | ||||
|
R
5.6.7
|
21h ago | 1 | |||
|
R
5.6.6g
|
21h ago | 1 |
[5.6.9c+mod] 5.6.9c Mod
by limesplatus on Oct 13, 2026
Download
- Some boss attacks can no longer be shielded
- Blaze king fixes
[5.6.9c] 5.6.9c Datapack
by limesplatus on Oct 13, 2026
Download
- Some boss attacks can no longer be shielded
- Blaze king fixes
[5.6.9b+mod] 5.6.9b Mod
by limesplatus on Oct 13, 2026
Download
- Strength on zombies that were spawned in on world generation no longer turns them into giants (modded players, unintentional naturally spawning giants are finally gone!)
- Illusioner defeat advancement now works
- Small optimizations
[5.6.9b] 5.6.9b Datapack
by limesplatus on Oct 13, 2026
Download
- Strength on zombies that were spawned in on world generation no longer turns them into giants (modded players, unintentional naturally spawning giants are finally gone!)
- Illusioner defeat advancement now works
- Small optimizations
[5.6.9a+mod] 5.6.9a Mod
by limesplatus on Oct 13, 2026
Download
- Remove RNG namespace and usage of it as it was causing creation of random area effect clouds
[5.6.9a] 5.6.9a Datapack
by limesplatus on Oct 13, 2026
Download
- Remove RNG namespace and usage of it as it was causing creation of random area effect clouds
[5.6.9+mod] 5.6.9 Mod
by limesplatus on Oct 13, 2026
Download
- Updated to 1.20! Changes made for 1.20 compat below**
- Smithing Table recipe updated to the new template based system (still uses same ingredients though!)
- Ugpraded predicates
alternativeto 1.20 (nowany_of)
- Non 1.20 changes**
- Ultris root advancement no longer displays in chat or in toast
- Fixed a bug with playing boss music
[5.6.9] 5.6.9 Datapack
by limesplatus on Oct 13, 2026
Download
- Updated to 1.20! Changes made for 1.20 compat below**
- Smithing Table recipe updated to the new template based system (still uses same ingredients though!)
- Ugpraded predicates
alternativeto 1.20 (nowany_of)
- Non 1.20 changes**
- Ultris root advancement no longer displays in chat or in toast
- Fixed a bug with playing boss music
[5.6.8d+mod] 5.6.8d Mod
by limesplatus on Oct 13, 2026
Download
- Fixed a major bug which could cause the accumulation of area effect clouds with the Sanctum Keeper soul gradually and sped up with damage
- Fixed a bug that caused console logs to show messages untranslated
[5.6.8d] 5.6.8d Datapack
by limesplatus on Oct 13, 2026
Download
- Fixed a major bug which could cause the accumulation of area effect clouds with the Sanctum Keeper soul gradually and sped up with damage
[5.6.8c] 5.6.8c Mod
by limesplatus on Oct 13, 2026
Download
- Tidied up the tick.mcfunction file by removing some lines and moving other lines to branched functions
- Ultris clocks are now organized into one folder
- 0.5 seconds of extra time added to the final Corrupted Enderman phase in between corrupt orb cycles
- Illusioner health lowered from 200.0f -> 140.0f
[5.6.8c] 5.6.8c Datapack
by limesplatus on Oct 13, 2026
Download
- Tidied up the tick.mcfunction file by removing some lines and moving other lines to branched functions
- Ultris clocks are now organized into one folder
- 0.5 seconds of extra time added to the final Corrupted Enderman phase in between corrupt orb cycles
- Illusioner health lowered from 200.0f -> 140.0f
[5.6.8b+mod] 5.6.8b Mod
by limesplatus on Oct 13, 2026
Download
- Fixed some translation issues with Ultris
[5.6.8b] 5.6.8b Datapack
by limesplatus on Oct 13, 2026
Download
- Fixed some translation issues with Ultris
[5.6.8a+mod] 5.6.8a Mod
by limesplatus on Oct 13, 2026
Download
- Changed the category heading text in the admin menu
- When using my other project "Refined Advancements" enderman killed in the Sanctum storage room no longer count for the "Frightening Fist Fight" advancement
- Explosions from bosses can now be protected against with the blast protection enchantment
[5.6.8a] 5.6.8a Datapack
by limesplatus on Oct 13, 2026
Download
- Changed the category heading text in the admin menu
- When using my other project "Refined Advancements" enderman killed in the Sanctum storage room no longer count for the "Frightening Fist Fight" advancement
- Explosions from bosses can now be protected against with the blast protection enchantment
[5.6.8] 5.6.8 Mod
by limesplatus on Oct 13, 2026
Download
- Ultris damage system has been revamped. Now using the
/damagecommand, this damage system accurately calculates damage, and good news, if you're wearing armor against a boss, the armor will actually protect you! Along with this you'll notice death messages will often say the boss that killed you. - New Ultra Wither attack; Ultra Dash! This new move has the Ultra Wither charge up, and then rush forward dealing damage and also clearing out blocks in its way
- New Sanctum Room; The library! This room used to be part of the scraped Fortified Sanctum and now returns in the normal sanctum
- The Illusioner code has been rewritten from scratch! Along with this the Illusioner also has a new attack which will give you blindness if you get too close.
- Sanctum common loot table has been heavily changed. Echo shards are no longer found in sanctums, an enchanted book will appear as a 33% chance, a treasure item like a gapple a 25% chance, and a 15% chance of finding a disc (11, stal, ward, or mall). The Sanctum Lab loot table has also been slightly changed.
- Blaze King Explosion now deals higher damage depending on how close to the blast you are
- Corrupted Enderman teleport and illusioner teleport is no longer bugged and particles display correctly
- Corrupted Enderman now only drops an Ominous Pearl, no longer does it also drop a regular pearl
- Phantom Swarms no longer spawn if you're inside the Shulker Stone end pyramid or in end cities
- Fixed a bug with Sanctum path generation where a overworld stone would be placed in the middle of the path
- Multiple changes to the Sanctum Lab; the room design is a bit more interesting and the Corrupter machine animation has been improved. Additionally, to create Corrupt Dust you must also pull the lever on the Corrupter to create it.
- Souls exiting the sanctum animation improved
[5.6.8] 5.6.8 Datapack
by limesplatus on Oct 13, 2026
Download
- Ultris damage system has been revamped. Now using the
/damagecommand, this damage system accurately calculates damage, and good news, if you're wearing armor against a boss, the armor will actually protect you! Along with this you'll notice death messages will often say the boss that killed you. - New Ultra Wither attack; Ultra Dash! This new move has the Ultra Wither charge up, and then rush forward dealing damage and also clearing out blocks in its way
- New Sanctum Room; The library! This room used to be part of the scraped Fortified Sanctum and now returns in the normal sanctum
- The Illusioner code has been rewritten from scratch! Along with this the Illusioner also has a new attack which will give you blindness if you get too close.
- Sanctum common loot table has been heavily changed. Echo shards are no longer found in sanctums, an enchanted book will appear as a 33% chance, a treasure item like a gapple a 25% chance, and a 15% chance of finding a disc (11, stal, ward, or mall). The Sanctum Lab loot table has also been slightly changed.
- Blaze King Explosion now deals higher damage depending on how close to the blast you are
- Corrupted Enderman teleport and illusioner teleport is no longer bugged and particles display correctly
- Corrupted Enderman now only drops an Ominous Pearl, no longer does it also drop a regular pearl
- Phantom Swarms no longer spawn if you're inside the Shulker Stone end pyramid or in end cities
- Fixed a bug with Sanctum path generation where a overworld stone would be placed in the middle of the path
- Multiple changes to the Sanctum Lab; the room design is a bit more interesting and the Corrupter machine animation has been improved. Additionally, to create Corrupt Dust you must also pull the lever on the Corrupter to create it.
- Souls exiting the sanctum animation improved
[5.6.7g+mod] 5.6.7g Mod
by limesplatus on Oct 13, 2026
Download
- Optimized Sanctum Keeper soul village detection (moved it to predicate checks)
[5.6.7g] 5.6.7g Datapack
by limesplatus on Oct 13, 2026
Download
- Optimized Sanctum Keeper soul village detection (moved it to predicate checks)
[5.6.7f+mod] 5.6.7f (Mod)
by limesplatus on Oct 13, 2026
Download
- Fixed a bug where defeating the Ultra Wither would not grant the advancement for it
[5.6.7f] 5.6.7f (Datapack)
by limesplatus on Oct 13, 2026
Download
- Fixed a bug where defeating the Ultra Wither would not grant the advancement for it
[5.6.7e] 5.6.7e (Fabric)
by limesplatus on Oct 13, 2026
Download
- Bosses can no longer be put in vehicles like boats, chest boats, or minecarts.
[5.6.7e] 5.6.7e (Datapack)
by limesplatus on Oct 13, 2026
Download
- Bosses can no longer be put in vehicles like boats, chest boats, or minecarts.
[5.6.7c] 5.6.7c Fabric
by limesplatus on Oct 13, 2026
Download
- Change one of the Blaze King's firework attacks to be red instead of blue
- Added a homing blue flame to phase 2 of Blaze King, it deals extremely high damage
- Fixed a phase loop bug in phase 1 of Blaze King
[5.6.7b] 5.6.7b Fabric
by limesplatus on Oct 13, 2026
Download
- Bosses Sanctum Keeper, Giant, and Corrupted Enderman can no longer be trapped into boats
[5.6.7b] 5.6.7b Fabric
by limesplatus on Oct 13, 2026
Download
- Bosses Sanctum Keeper, Giant, and Corrupted Enderman can no longer be trapped into boats
[5.6.7] 5.6.7
by limesplatus on Oct 13, 2026
Download
- Corrupted Enderman, Blaze King, and Ultra Wither now have health based off attribute values
- Corrupted Enderman has a new phase which will occur when it has very low health left
- Corrupted Enderman death animation is mildly more terrifying
- Giant Stompers have been improved, as now you can perform a high jump when sneaking and then jumping. Item lore for it has changed aswell
- Blaze King phase 2 fireworks has now been replaced with sky flames that explode when hitting the arena with high damage and fire
- Blaze King fires have been reduced as now its large fireball attack has been replace with an area flame
- Most Blaze King fires will burn out overtime with fire tick off
- Expanded the Blaze King arena a bit and some parts of the structure exterior bridges
- The Blaze King arena now makes a dome overhead if not exposed to open air, as well as surronding the arena in lava pools
- Blaze King, Shulker Stone and Sanctum Keeper death animation xp now drops xp in a way that spreads the xp out to nearby players
- If you are inside an end city, the phantom swarm cannot spawn near you anylonger
- Some slight changes to advancement colors
![MissingMons [cobblemon]](uploads/icons/thumbs/missingmons-cobblemon_0270f8b1_thumb.jpg){kind=icon}