When you died if you were relevant to the universe you appeared in a small room with 5 other people and a black sphere which contained inside a tight black suit and weapons per person. When the sphere opened you had at least 5 minutes to put on the suit if you wanted to survive, then you were teleported to the city where you would fight with horrible aliens until you finished with each and every one of them per night until you got enough points to have a decent reincarnation or upgrade your weapons but continue in that atrocious game.
The game is easy to understand, at least it was for William who instead of running away from it, the psychopath had upgraded his weapons at least 3 times and gladly that night he was already in the room where everyone was teleported, watching sitting in a corner as rookies arrived and watched with disdain.
William: "Tch.. Bunch of idiots who will die on the first night."