Bukkit

Beta 1.3

changes:

added nightmare mode (look in config for details)

economy support added through Vault

added Custom named mobs created by the plugin (killing natural mobs will not count towards goal)

Beta 1.2

changes:

added more creatures (although some are still quirky at best)

more configurable options added

Beta 1.1

changes:

ScoreBoard to track goal

ability to spawn in Creepers

Creeper grief protection added

configurable start time

configurable event duration

manual start options for ops

configurable number of mobs per player to spawn

configurable spawn distance from each player

Future versions:

features

more configurable loot including custom names and enchants

customizable spawned mobs (varying power, health, damage, names, etc)

chainable encounters - ie: Kill this Mob, which spawns that mob so you can create a boss at the end of a wave at a static point or you can have all players involved spawned to a location and then start the encounter