Control Resonant: How to Solve the Atlantis Cafe Puzzle (Cash Register Code)

Control Resonant: How to Solve the Atlantis Cafe Puzzle (Cash Register Code)

Written by Grace Black - 13th October 2026

There are many puzzles scattered throughout each zone in Control Resonant, often unlocking bonus rooms with important upgrades and items. This means that tracking them down and completing the puzzles in each zone are key to improving Dylan's health for exploration and combat. This includes small areas that could go unmissed if you don't know where to look, such as the Atlantis Cafe.

If you're wondering where you can find the Atlantis Cafe cash register puzzle in Control Resonant and how to solve it, then we've got you covered. Everything you'll need to know about the puzzle solution and how to unlock the secret basement room in the cafe has been explained in the guide below.

Quick Links

Where to Find the Atlantis Cafe Puzzle in Control Resonant

control resonant how to solve the atlantis cafe doors

In Control Resonant, the Atlantis Cafe can be found in The Park zone and is located somewhere approximately between the Research Site and the FBC Base. If you're having trouble finding it, then we've also included a map screenshot below to show you the cafe's whereabouts.

control resonant atlantis cafe location

Go ahead and enter the cafe, and you'll see an empty space full of tables and a cash register sitting unattended.

How to Solve the Atlantis Cafe Puzzle & Unlock the Secret Room

control resonant how to solve the atlantis cafe interior

Inside the cafe, there are two notes that enable you to work out how to solve the cash register puzzle. Both of these notes can be found at the front counter where the register sits.

The first note lists the drink menu, giving each item a corresponding price and letter.

control resonant cafe drinks

A is Espresso, B is Iced Coffee, C is Caramel Latte, and D is The Spiciest Chai.

The second note lists the "Table Reservations" followed by a particular order: Table 1, Table 5, Table 4, Table 2.

control resonant cafe table reservations

This sequence is relative to the order in which you enter the code into the cash register.

How to Figure Out the Cash Register Code

In order to solve the puzzle, you will need to go around to each table mentioned on the Table Reservations list in order and see what menu card is placed on them. For example, if Table 1 has a Caramel Latte on the card, then Table 1 would be C. You need to visit all four tables in order to discover the code - CADB, for example.

Note: You will actually need to work out your code with this method, as it seems they may vary per save file.

  • While the menu card corresponding letters and pricing remain the same, it appears that the drink order on each of the table cards may be random on each save file, as some users online have reported different orders. This means that the cash register code is likely different for each person.
  • The drink items and codes below are what appeared in my playthrough, but you can still use the same method to determine your own code if it differs.

Here is the Atlantis Cafe puzzle solution that worked in my save:

  • Table 1: Iced Coffee (B)

control resonant cafe table 1

  • Table 5: The Spiciest Chai (D)

control resonant cafe table 5

  • Table 4: Espresso (A)

control resonant cafe table 4

  • Table 2: Caramel Latte (C)

control resonant cafe table 5

Meaning that the cash register code that successfully solved the puzzle on my end was BDAC.

Unlocking the Secret Basement & All Rewards

control resonant cafe cash register

To finish the Atlantis Cafe cash register puzzle and unlock the secret basement, walk over to the cash register and select 'Interact'. Now, use the dial to enter your code in the correct order.

After doing so, the secret pathway to the basement will pop open within the cafe. Follow the path downstairs, and you'll be able to get your hands on a permanent health bonus plus some extra documents.

The documents you will find in the cafe basement are:

  • Fuck You, Larry Note
  • Notice of Decommissioning

Right beside the Notice of Decommissioning, there will be a loot crate that you can also open for a permanent health upgrade.

control resonant cafe health upgrade

This is one of the three upgrades available at The Park area, so don't forget to make a quick stop by the cafe and solve this puzzle as soon as you are able to, as these health bonuses will be very handy for some of the later fights in the game.

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