The Endless Tower is a 101-floor challenge dungeon where players face increasingly difficult monsters, culminating in powerful MVP bosses. It is an excellent place to test your skills and teamwork. Below are the steps you need to follow to participate in this instance.

• Minimum Base Level: 50
• Party required: You must be in a party with at least one other player.
• Zeny: You need 10,000 Zeny for Captain Janssen to set sail.

• Find Captain Janssen:
  1. Head to Alberta (214, 77) and talk to Captain Janssen. He will help you prepare for the tower. Make sure you don’t have too much weight, or he won't let you proceed.

• Party Requirement:

1. You need to create or join a party. The party leader will be responsible for creating the instance and leading the party into the tower. Talk to Captain Janssen when you are ready.

• Donation:

1. When you first talk to Captain Janssen, he will ask for a donation of 10,000 Zeny to help him with supplies. After this donation, you can talk to him again to prepare for the adventure.

• Reserve the Dungeon:
  1. The party leader will need to talk to Captain Janssen and select the option “Generate Dungeon: Endless Tower”. This will create the instance for the party.

• Starting the Instance:

1. After generating the dungeon, all party members should be ready. Talk to Captain Janssen again and select “Enter the Dungeon” to be teleported to the Endless Tower.

• Tower Floors:

1. You will start on the first floor and work your way up. Each floor contains various monsters that you must defeat before proceeding to the next.

• Restock and Re-enter:

1. If your party fails and needs to re-enter, you will need to wait for a cooldown period of one week before attempting the Endless Tower again. However, you can reset your progress by interacting with Purification Stones in the tower.

• Monsters: Each floor has different monsters, getting progressively harder the higher you go. Be prepared for tough MVPs.

• Cooldown: If you leave or fail, there’s a 1-week cooldown before you can attempt the tower again.

• Communication: Make sure to stay in communication with your party to clear each floor efficiently.

This guide provides all the steps necessary to participate in the Endless Tower. Make sure you prepare your party, have enough Zeny, and coordinate effectively to conquer all 101 floors. Enjoy the challenge and good luck!