Boss Balancer is a smart, 100% Server-Side utility mod designed to fix a common issue in multiplayer servers: bosses becoming a joke when fought by multiple players... or by overpowered solo "rushers".
This mod dynamically scales the health and damage of bosses (and optionally, normal mobs) based on the number of players nearby, ensuring every encounter remains a brutal and epic challenge!
mods folder, and it works instantly.bossbalancer.json config file or via in-game commands.As an admin, you can control the mod on the fly using the /bossbalancer command! No server restarts required.
/bossbalancer status - Shows the current scaling settings and multipliers./bossbalancer toggle - Enables or disables the boss scaling completely./bossbalancer config <radius> <scalingFactor> <maxMultiplier> - Adjusts the core scaling parameters instantly./bossbalancer blacklist add/remove/list <entity_id> - Easily manage which entities should be ignored by the scaling system./bossbalancer reload - Reloads the configuration file from disk./bossbalancer debug <true/false> - Enables debug mode to print scaling info to the chat.The mod also includes a /bossbalancer mobs subcommand to configure the optional scaling for normal mobs!
By default, any entity with more than 200 Max HP (or 100 HP for non-standard monsters) is automatically considered a boss. The mod counts how many players are nearby when the boss spawns or during combat, and applies the multipliers transparently in the background using Minecraft's native attribute system.