While hunting monsters, there is a chance that a Dimensional Rift Portal will open upon their death.

• The chance of a portal appearing depends on the monster's strength (the higher the HP, the higher the chance).
• The portal spawns at the exact location where the monster died and is active only for a short time.

Not everyone can enter an open portal. Strict rules apply:

• Owner: The portal is assigned to the player who dealt the last hit.
• Party: Only the owner and their Party members can enter.
• Stamina: You need a minimum of 20 minutes of stamina.
• Safety: You cannot have a Protection Zone Block (PZ Lock).

Once inside the arena, you will be attacked by waves of monsters (from 5 to 10 waves).

• Monsters are stronger than usual (Ranked: RIFT I, II, III and BOSS).
• The more Party members enter the arena, the more monsters will spawn (Bonus Spawns).
• You must defeat all monsters to trigger the next wave.

The entire challenge is timed. If you fail to defeat the waves before the dimension closes, you will be kicked out.

There is also a return teleport at the end of each arena if you decide the fight is too difficult.