Hardcore Questing Mode introduces a possibility to play a life based hardcore mode, but with more than only 1 life before your world gets deleted or you get banned from a server. Furthermore, you can complete quests to gain rewards, the rewards might be cool items or even extra lives.

The quests aren't however included in the mod, it's up to you or a map maker to create them. To create them you will have to use the in-game editor. You can then export the quests to a file to share with your friends or the players of your map.