Sword Art Online

Sword Art Online is the theme and base of the game. SAO:PE is meant to be the closest thing to the manga/anime. Sword Art Online is about 10,000 or so "lucky" contestants and among them, beta testers soon to be known as beaters, that get stuck into a virtual reality game known as Sword Art Online. If your health is completely depleted, you will die in real life (IRL), basically by your brain being electrocuted by the special helmet or nerve gear that all players have on. In the beginning, before players couldn't log out as the log out feature had been removed, so players couldn't escape, the Nerve Gear had players touch certain parts of their bodies, like their face and arms, so that it would know, in some sense, what they looked like. In the game, all players looked like themselves IRL, outside of virtual reality. In order for all players to exit the game, they must clear all 100 floors of the floating castle, Aincrad. Each floor has a boss that prevents you from entering the next floor until it's defeated and get harder as you defeat them. The main character's name is Kirito.