Infinite Tower is a virtual instanced dungeon in Kal Online. You enter it when you reach the level requirement and pay the entry cost. GameAgit's guide describes it as a hunting ground that can satisfy everyone from low level to high level, and it is optimized for individual play. There is no safe zone inside the instance.
Getting in
Talk to the Infinite Tower transport guide in Geojo' Tabernacle to move there. The guide notes that Infinite Tower cannot be saved as a location save order, so you have to travel to the guide each time you want to enter rather than saving the spot.
Entry costs
- First entry. Geon.
- Second and third entries. Jewel.
The 30 minute timer
The entry time is maintained for 30 minutes. You can save time by exiting the movement order form in the middle, which means leaving the move window early keeps the remaining time instead of consuming the whole window.
Party mode
Party Infinite Tower can only be entered while you are in party status. Each floor requires a ticket item, and those tickets are dropped from Personal Infinite Tower. When you enter as a party, only the tickets held by the party leader are deducted.
Why it is worth knowing
Infinite Tower is a repeatable instance with no safe zone, so it suits players who want controlled solo farming. Because party runs need tickets that come from the solo version, running Personal Infinite Tower first builds up the supply you need later.
Sources
GameAgit: Kalonline Infinite Tower (entry, costs, timer, party rules)