Plugin SpawnerEXP

SpawnerEXP, flexible mob spawners for a Minecraft server

SpawnerEXP is a historic Bukkit plugin that expands monster spawner mechanics with configurable drops and crafting options. When a natural spawner is broken, it can provide iron bars, experience, and either a blank spawn egg or an egg matching the spawner’s creature type. Players can also use eggs to change the mob produced by a spawner.

Permissions and configuration controls let administrators manage crafting, drops, survival and creative use, experience amounts, and player placed spawners. For BoxToPlay, it offers a straightforward way to add progression and more control to a classic Minecraft server, although it was designed for early CraftBukkit releases.