Bukkit

Offers full rpg system, classes, weapons, spells, mobs and quests

FunnyGuilds is a fully customizable RPG plugin that allows you to create guilds

Thirst

Seeing light in your darkest hour

Plugin to add administrator commands to Gyul's Economy

Time travel in the TARDIS!

PrisonUtils

Adds more armors to the game

This is a movement plugin like no other.

Call of Minecraft: Zombies

A fully customisable RPG plugin that allows you to create Guilds with distinct advantages and disadvantages.

Command a mob army to fight for your team

Play as a Werewolf

An mcMMO themed plugin for horse role-playing.

Allows players to have nicknames.

Provides configurable options for changing damage/health for entities on your server based on Level

An extensive questing system

A plugin for Bukkit based Minecraft servers to add a new mechanic similar to the bloodmoon event in Terraria

This plugin allows you to remove enchantments from items by throwing an anvil at them

Automatically sends mined blocks to a player's inveontory