Stamina - the endurance of the character. Initially, you have 42 hours of play, but it decreases as you gain experience. Stamina does not decrease when you are only attacked.
When stamina drops below 18 hours, the bar turns red, and the character receives only half the experience. Additionally, no items can be obtained from monsters during this time. This system is designed to discourage excessive powergaming, botting, and account sharing.
If stamina reaches 0, you gain no loot or experience. Stamina regenerates when the character is offline or while training in the VIP area.
During the first two hours of stamina (42-40), Premium Account players receive a 50% experience bonus.