That involves all Server Messages.
Full Mini Games (1vs1 or Team Based): This kind of plugins are one of the most requested by medium-big servers, there're infinite amount of Game Variations.
Economy Hooked Plugins: There're thousands of uses for Economy Hooked Plugins, you can use the economy in many ways.
- Give players rewards in Games, by Killing Mobs, Finding Treasures...
- Use economy to buy/sell items, experience, kits, permissions, powers...
- Use economy to enter certain games, use certain items, teleports...
- Lottery Plugins.
- Bank Plugins.
- Bidding Plugins.
Chat Channels: This is usually a feature inside other plugin to complement it.
- Separate Chat Channels for Games.
- Separate World Chat Channels.
- Separate Clan/Party Chat Channels.
- Personal Chat Channels.
- Personal Messaging Channels.
Combat Enchancements: Important part for PvP or Survival Servers which want to make the game more fun.
- HeadShots (Bows), which does more damage than normal when hitting in the head.
- Critical Hits: Add a chance to make more damage or apply to the victim dizzy effects, bleeding...
- Crippling Shots/Hits: slow the victim by hitting their legs.
- Special Effects: poison, fire, slow, bleeding, explosion, thunders, lauch player 500 blocks away or upwards... i can code almost any effect you want!