Boss - Unbelievable Custom Monsters v6.1.9

Advanced custom monsters & AI plugin with skills system and a clean UI. Folia supported.
  • Fix | Solved "UnsupportedOperationException: Cannot remove player" on Paper when a Boss dismounts a riding Player
  • New | Compatible with Minecraft 26.1
  • Fix | Solved \n in commands kicking players on Minecraft 26.1
  • 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]
  • 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)
  • 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
  • Improve | Improved internal crash reporting — only report errors on the latest plugin version
  • 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
  • New | Add /boss duplicate command and a Duplicate button in the boss menu to copy an existing Boss with all its settings under a new name
  • Improve | Replace Sentry error reporting with a self-hosted crash reporter. The Sentry key in settings.yml is now Error_Auto_Reporting
  • Fix | Solved paginated commands (e.g. /boss list) showing mixed output with other Foundation-based plugins when used together
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$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
Share and earn
Refer this resource and earn a 10% commission.
110,601 Views
779 Purchases
1,286 Downloads
Oct 20, 2021 Published
Jul 13, 2026 Updated
5.00 star(s)
Average rating (54)
2.2 MB File size
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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Share and earn
Refer this resource and earn a 10% commission.
110,601 Views
779 Purchases
1,286 Downloads
Oct 20, 2021 Published
Jul 13, 2026 Updated
5.00 star(s)
Average rating (54)
2.2 MB File size
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
Recommended for you
The ultimate chat formatting, filtering & anti-spam. Can replace 200+ plugins. Folia supported.
5.00 star(s) 129 ratings
2,271 purchases
An addon for ChatControl to allow cross-network features and player messages.
5.00 star(s) 6 ratings
474 purchases
Procedurally destroyable arenas with classes, tier system & Velocity support.
4.50 star(s) 8 ratings
176 purchases
Protect your economy against raids, duplicated items or zero-day exploits.
4.00 star(s) 7 ratings
147 purchases
Add snow particles & terrain snow, spawn snowmen, place gift chests and much more!
5.00 star(s) 6 ratings
138 purchases
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