One day a tower appeared in the world. No one knew what kind of tower it was, but people began to disappear all over the world. These people were never found again. You were minding your own business when suddenly a summoning circle appeared under you. Finally you realized where people disappeared to. A strange window has popped up in front of you.

[You have been chosen by the tower. Select the difficulty level of the first trial.]

• Easy (Survival rate - 70%)
• Normal (Survival rate - 50%)
• Hard (Survival rate - 20%)
• Hell (Survival rate - 1,2%)
• Nightmare (Survival rate - 0,01%)