Imperial Hero is a web-base role-playing online game. The events in it occur in one of the numerous empires in IO Multiverse. The idea is: "Until now you have been the Emperor, ruling millions of people. Now you will be one of those millions." The heroes in the game receive experience points upon defeating foes in battle-humanoids or monsters. The experience rewards, as well as the monsters' strength, item rewards, crafted items, as well as the dungeons in which the hero can explore, are divided into 5 Tiers.