Bukkit

Animal Plague lets you configure a disease that will spread, weaken, and kill animals. Fun stuff!

Create upgrades for weapons and tools! Allow players to make their equipment better by creating upgrades.

Horses are cool, but why not make them even better? With HorseSkills we added new skills to make horses even more fun!

Give Players a random item every X minutes! Encourage players to log on daily to get their random prize!

Insanity can be a problem for people who spend time underground. Give your players this experience for themselves!