Bukkit

Count your blocks and gain ranks!

SkyBukkit seamlessly brings SkyBlock to Bukkit servers.

Better than Quests - a powerful Quest & Conversation plugin. Create your story!

The best custom crafting plugin out there

https://github.com/xXKeyleXx/AncientRPG/issues

NBTEditor allows easy customization of entities and spawners. It also provides tools to manage other NBT related objects.

Zero Inventory Problems is a plugin for Spigot based Minecraft Servers that adds backpacks to store there overfully inventorys

This plugin is an events plugin, it is more created for lobbies but you can use it for the things you want

Backpacks contained within items, with realistic features that a backpack should come with.

A TinkersConstruct-inspired Plugin; Replaces Vanilla-Enchantments

Fully customizable voting with ban/kick/day/night/rain/sun

A plugin similar to Factions, but with several unique twists!

ShareControl

Cars for minecraft!

An extremely efficient way of economic balancing, allowing poorer players to have a chance to earn.

Adds blood effect for all hits!

UnlimitedLava

A plugin that adds items that turn into structures when places

Sit on stairs. Also supports sitting on custom blocks.

Secure and configurable Ender Chests