Bukkit

InsaneMobs2

Backpacks, mobile furnaces, etc... as items! No client-side mods required.

BowSpleef - Shoot at TNT with a flame bow and knock out the the ground under your opponents!

The Complete Hub Plugin for Bukkit.

Emotecraft stream service on a bukkit server

Add natural occurring disasters for a fun challenge.

A quality gun plugin similar to CrackShot.

Simple yet robust clan system for PvP servers (SUPPORTS 1.8 to 1.18)

The premier long-range map editing tool for Minecraft SMP.

Display any image in-game on a map! (or many)

**Not Maintained** Display an RPG-style health bar above mobs and players.

Draw images on maps and put them in Itemframes

A Parachute Plugin

If you've ever used the VeinMiner mod for minecraft Forge, it has now been recreated for Bukkit, CraftBukkit, and Spigot

Brew alcoholic potions, get drunk and have fun!

Replicate first-person shooters with advanced gun-mechanics and a vast number of exciting and fully customisable features.

CraftBook adds a number of original gameplay elements to Minecraft from integrated circuits to gates

A complete rpg plugin with custom items that give the wearer powerful abilities and are obtained by defeating custom bosses

Lop off Player and all Mob Heads with configurable drop rates + pvp-farming nerf, includes detailed commands and permissions

Addeds the Ability to play music from a custom resourcepack on a server, without overriding existing music