Boss - Unbelievable Custom Monsters v6.1.9

Advanced custom monsters & AI plugin with skills system and a clean UI. Folia supported.
  • Fix | Fixed boss health not applying on modern servers by using the attribute-based API instead of the deprecated setMaxHealth()
  • Fix | Fixed wolf boss health resetting to vanilla values after being tamed from an egg — health is now re-applied after taming
  • Fix | Solved "IllegalArgumentException" crash when loading Boss equipment or drops containing items with Infinity/NaN attribute modifier amounts
  • New | Added ambient particle effects for Bosses with 8 shapes: Ambient Cloud, Circle, Helix, Vortex, Sphere, Tornado, Wings and Cube. Configurable particle type, count, speed, interval, radius, height, strands and forward offset. Open /boss menu > Settings > Particles to configure
  • Improve | Only warn about underscore names breaking PlaceholderAPI when PlaceholderAPI is actually loaded
  • Improve | Rearranged Settings menu layout for better organization
  • Fix | Fixed decimal input not accepting negative numbers (e.g. forward offset)
  • Fix | Solved "Each entry in Drops.Player must be a list of Tuples, not a LinkedHashMap" when loading bosses with player drops saved in the old format (pre-5.8.3)
  • Improve | Bosses with Citizens now walk back to their region using pathfinding instead of teleporting when they wander out
  • Fix | Solved "Non scalar key is detected but it is not configured to be allowed" when loading boss files with Drops.Player configured as ItemStack-to-chance map
  • Improve | Fall back to vanilla Minecraft AI when both Citizens target and wander goals are disabled
  • Fix | Fixed Citizens clear() bug wiping the attack behavior when wander goal was disabled
  • Fix | Fixed bosses still targeting and chasing players in Creative or Spectator mode
  • Fix | Fixed Citizens wander goal not working (bosses standing still instead of roaming)
  • Improve | Compatible with latest Citizens build
  • Improve | Removed semi-broken menu translation keys from lang/en_US.json. I'll re-add GUI translations a bit later.
  • New | Boss Bar: A real-time health bar now appears at the top of the screen for players near a Boss. Configurable color, style, format and radius in settings.yml under Fighting.Boss_Bar. Each boss can opt in/out via its Settings menu.
  • New | Spawned Bosses Menu: View all currently alive bosses in one paged menu. Left-click to teleport, right-click to remove.
  • New | Projectile Immunity: Per-boss toggle in the Settings menu. When enabled, the boss takes zero damage from arrows, tridents and other projectiles.
  • New | New placeholders:
    • %boss_spawned% — total alive bosses across all worlds
    • %boss_spawned_here% — alive bosses in the player's current world
    • %boss_spawned_{world}% — alive bosses in a specific world
    • %boss_{name}_spawned% — alive count of a specific boss type
  • Improve | All GUI text is now sourced from lang/en_US.json instead of being hardcoded, making menus fully translatable. Run /boss dumplocale to generate the keys.
  • Improve | Folia compatibility: Entity-bound scheduling now uses Folia's per-entity scheduler where available.
  • Improve | Citizens and DiscordSRV hooks now load via each plugin's own classloader, preventing ClassNotFoundException on servers running multiple MineAcademy plugins.
  • Improve | Boss names with underscores now print a startup warning since underscores break PlaceholderAPI placeholder resolution.
  • Improve | Old YAML-format player drops are automatically migrated to the new format on load.
  • Fix | Database row logging no longer dumps full data blobs into console — output is now truncated.
  • Fix | Fixed item order bug, typo, and egg check in the Death menu.
  • Fix | Fixed spacing before menu label in the Commands menu.
  • Fix | Settings menu now supports "silent" as a valid death sound value.
  • Fix | Fixed Spawn Rules accepting invalid hour value 24 in date range configuration (max is now 23).
  • Fix | Fixed Boss placeholders using .contains() instead of .equals() for region variable matching, which could cause false matches.
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
Share and earn
Refer this resource and earn a 10% commission.
110,602 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
Share and earn
Refer this resource and earn a 10% commission.
110,602 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
Top