You wake up in the complex and feel pain in your chest, but don't know where it comes from.

There are 3 exit doors in the complex, but each one requires a different set of key cards. You have to search the complex for key cards and other objects to unlock one of the exits and escape from the complex.

But you have to be careful because you are not alone in the complex. There is a monster that roams the complex. If it sees you, it will try to eat you. The monster is even more dangerous because you have a bracelet attached to your leg that beeps loudly, so don't stand still when you hear the bracelet.

You can hide in closets or just run, but you have to remember that the more the monster runs, the faster it becomes. There are also two weapons and many traps placed around the complex that you can use to stun or slow the monster. Don't forget that most traps can easily kill you if you're not careful.

There are five different difficulty levels: Practice, Easy, Normal, Hard, and Extreme.

If you play in Practice mode, you are in the complex without the monster, so you can freely explore the complex. There are still a few things that can kill you.

You don't have many attempts, except when you're playing Practice mode, of course. If you run out of attempts, you will die.

Good luck!