Boss - Unbelievable Custom Monsters v6.2.0

Advanced custom monsters & AI plugin with skills system and a clean UI. Folia supported.

Overview Updates (234) Reviews (61) History Wiki Support

5.10.2

  • Improve | Citizens integration now compatible with both old and new Citizens API versions
  • Fix | Solved "IllegalArgumentException: data (class [I) should be class java.lang.Void" when spawning particles on Paper 26.1+
  • Fix | Fixed minion spawning not finding ground level on MC 1.18+ worlds with negative Y coordinates
  • Fix | Fixed attribute detection dummy entity spawning at y=0 instead of at the spawn location
  • Fix | Fixed block scanning and region methods not handling negative Y on MC 1.18+

5.10.1

  • Fix | Solved "UnsupportedOperationException: Cannot remove player" on Paper when a Boss dismounts a riding Player

5.10.0

  • New | Compatible with Minecraft 26.1
  • Fix | Solved \n in commands kicking players on Minecraft 26.1

5.9.4

  • New | Added health-based phases for skills. Each skill now has a Health Range setting (golden apple icon in the skill menu). Set 50 - 100 for above-half-health skills and 0 - 50 for below-half-health skills to create multi-phase bosses. Default is 0 - 100 (always active), existing setups unaffected. Visible in Debug: [skills]

5.9.3

  • Improve | Native pathfinder goals now use Boss.canTarget() validation — mobs with Native Attack Goal will no longer target creative/spectator, vanished, invulnerable, or NPC players
  • Fix | Solved a menu crash when restarting a non-chest inventory type (e.g. Hopper, Dropper)

5.9.1

  • Fix | Solved "NoSuchMethodError: 'java.lang.String net.kyori.adventure.text.minimessage.MiniMessage.stripTags(java.lang.String)'" on CraftBukkit 1.8.8 and servers with older MiniMessage

5.9.0b

  • Improve | Improved internal crash reporting — only report errors on the latest plugin version

5.9.0

  • Improve | Menu titles are no longer truncated to 30 characters on 1.9+
  • Fix | Solved "ParsingExceptionImpl: Legacy formatting codes have been detected in a MiniMessage string" crash when text contains domain-like patterns combined with legacy color codes
  • Fix | No longer auto-report ClassNotFoundException for Citizens and DiscordSRV plugin hooks as crash reports. Now shown as a warning message instead
Buy a license now
$19.97
EULA
Standard EULA
Use on any projects you own with attribution
Support
Standard
Includes:
Download the resource
Access new updates
Support from the creator
Support duration
Lifetime
Extras
4X Advanced Entities Pack
+ $9.99
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Refer this resource and earn a 10% commission.
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110,626 Views
779 Purchases
1,286 Downloads
Oct 20, 2021 Published
Jul 17, 2026 Updated
5.00 star(s)
Average rating (54)
2.2 MB File size
ai custom ai mob monster pathfinder skin
Open source
  1. No
DRM-free
  1. Yes
Unobfuscated
  1. Yes
Type
  1. Gameplay
  1. Monetization
  1. Minigame
Game mode
  1. Survival & SMP
  1. Creative
  1. Minigame
Game mode
  1. Survival
  1. Creative
  1. Minigame
Game mode (legacy)
  1. Survival
  1. Creative
  1. Minigame
Supported software
  1. Bukkit
  1. Spigot
  1. Paper
  1. Folia
  1. Purpur
Supported versions
  1. 26.1
  1. 1.21.11
  1. 1.21.8
  1. 1.21.5
  1. 1.21.4
  1. 1.21.2
  1. 1.21
  1. 1.20
  1. 1.19
  1. 1.18
  1. 1.15
  1. 1.14
  1. 1.13
  1. 1.12
  1. 1.11
  1. 1.10
  1. 1.9
  1. 1.8
Supported languages
  1. English
Includes DRM
No
Source access (legacy)
Closed source & unobfuscated
Creators
Owner
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110,626 Views
779 Purchases
1,286 Downloads
Oct 20, 2021 Published
Jul 17, 2026 Updated
5.00 star(s)
Average rating (54)
2.2 MB File size
ai custom ai mob monster pathfinder skin
Open source
  1. No
DRM-free
  1. Yes
Unobfuscated
  1. Yes
Type
  1. Gameplay
  1. Monetization
  1. Minigame
Game mode
  1. Survival & SMP
  1. Creative
  1. Minigame
Game mode
  1. Survival
  1. Creative
  1. Minigame
Game mode (legacy)
  1. Survival
  1. Creative
  1. Minigame
Supported software
  1. Bukkit
  1. Spigot
  1. Paper
  1. Folia
  1. Purpur
Supported versions
  1. 26.1
  1. 1.21.11
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  1. 1.21.4
  1. 1.21.2
  1. 1.21
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Includes DRM
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