How to Open the Atlantis Door in Drain the Lake Guide

The Atlantis Door is one of the hidden secrets in Drain the Lake and is required if you’re trying to unlock the Trident Bucket and earn the Lost Trident Badge. Unlike normal progression, opening this door involves a special puzzle and a required item that you must obtain beforehand. If you’re having trouble finding or opening the Atlantis Door, this guide walks you through every step.

Unlock the Jewel Bucket First

Before you can interact with the Atlantis Door, you must own the Jewel Bucket. This special bucket is obtained by completing the game’s Hidden Treasure Ending, which is one of the secret endings available in Drain the Lake. Without the Jewel Bucket, you won’t be able to complete the Atlantis puzzle, so make sure you’ve unlocked it before attempting the door.

Reach the Green Area

Start a new game and begin draining the lake as normal. Continue progressing until you reach approximately:

• Checkpoint 4
• Checkpoint 5

Around this stage, you’ll enter the green section of the map where the Atlantis Door has a chance to appear.

Find the Atlantis Door

Once you’re in the correct area, search for the hidden Atlantis entrance. Keep in mind that:

• The Atlantis Door is not guaranteed to spawn.
• It only appears in some runs.
• If you don’t find it, you’ll need to leave the server and start another game.

Because the spawn is random, you may need several attempts before locating it.

Locate the Jewel Bowl

Finding the Atlantis Door isn’t enough. Nearby, you’ll also need to locate a Jewel Bowl, which is part of the hidden puzzle required to unlock the entrance. Both the door and the bowl are needed to continue. Equip your Jewel Bucket and collect water. Next, pour the water into the Jewel Bowl. Only the Jewel Bucket works for this puzzle. Using any other bucket will not activate the mechanism.

Open the Atlantis Door

After filling the Jewel Bowl:

1. Return to the Atlantis Door.
2. Stand close to it.
3. Press and hold E to interact.

If you’ve completed the previous steps correctly, the door will open and reveal the hidden Atlantis room.

What’s Inside the Atlantis Room?

The Atlantis room contains one of the game’s rare secret rewards. Inside, you’ll find the Trident Bucket, which is required for earning the Lost Trident Badge. However, there’s one important limitation:

• Only one player per server can claim the Trident Bucket.

If another player reaches it first, you’ll need to join a new server and complete the process again.

Why Won’t the Atlantis Door Open?

If the door isn’t opening, check the following:

• You have already unlocked the Jewel Bucket.
• You filled the Jewel Bowl using the Jewel Bucket.
• You’re holding E while standing at the door.
• Another player hasn’t already completed the event.
• The Atlantis Door actually spawned during your current run.

Missing any of these requirements will prevent the door from opening.

Opening the Atlantis Door in Drain the Lake requires more than simply finding the hidden entrance. You’ll first need the Jewel Bucket, then locate both the Atlantis Door and the nearby Jewel Bowl before completing the puzzle. Since the Atlantis area doesn’t appear in every run and only one player can collect the Trident Bucket per server, expect to retry several times before successfully unlocking the secret room and claiming its exclusive reward.