Sep 19, 2025

The House of Tesla Walkthrough – Personal Office of Nikola Tesla

Muhit Rahman

Muhit Rahman lives off two things: gaming marathons and endless cups of tea. He writes guides, reviews, and occasionally forgets that real life doesn’t come with checkpoints. His favorite genres are Soulslike and Metroidvania, with Dark Souls III, Hollow Knight, and Dota 2 forever holding top spots on his all-time list.

Welcome to our walkthrough for The House of Tesla. This guide covers the first chapter of the game, the Personal Office of Nikola Tesla.

The game begins with a short tutorial segment that introduces the basics. Follow the on-screen instructions until you pick up the Notebook from the table. Once you have it, the tutorial ends, and the game leaves you in charge to figure out your next steps.

For more information about The House of Tesla, check out the official website here.

Getting the Mechanical Key
Cabinet Near the Door
Table with a Safe
Tesla Memory
Opening the Main Door

Getting the Mechanical Key

Once you’re free to move, turn toward the table at the back of the room. Zoom in on the newspaper, and you’ll spot a key resting on top of it.

Pick it up to collect the Mechanical Key. Then, click on the key in your inventory and follow the on-screen instructions to complete the item.

Cabinet Near the Door

Now that you have the key, turn toward the door. Right in front of it, you’ll spot a cabinet with its lid closed.

Head over and use the Mechanical Key with the keyhole. Rotate it to unlock the lid, then lift it to access the inside of the cabinet.

Before you do that, though, take a closer look at the iron fittings. Notice that the left fitting looks slightly out of place. Zoom in on it and pull it out to reveal a hidden compartment. Inside, you’ll find the Metal Triangle.

Next, zoom inside the now-open cabinet. Collect the Note and the Wooden Beam.

On either side of the cabinet table, you’ll see grooves. The left groove has a metal triangle you can pull. Doing so slides open a cover at the back of the table.

Now, use the Mechanical Triangle you picked up earlier with the slot on the right groove. Pull it to reveal a block-sliding puzzle at the back of the cabinet.

This puzzle is simple: move the blocks around until the picture is complete. Check the image above for the correct position of the blocks.

Once you solve it, the block will slide down revealing a hidden compartment behind it. You’ll find the Coiled Wire Ring inside.

That’s everything here for now. Back away from the cabinet.

Table with a Safe

Head to the table on the left side of the door.

Use the Wooden Rod on the clamp to create a handle. Rotate the clamp to release the Coiled Wire Rod.

Combine the Coiled Wire Rod with the Coiled Wire Ring in your inventory to create a Small Tesla Coil. Don’t forget to push the Wire Ring down to complete the item.

Attach the Small Tesla Coil to the empty slot on the steering wheel of the table. Rotate the wheel to generate electrical currents until the Receiver pops out.

Pick up the Receiver and attach it to the slot on the right side wall of the safe.

Rotate the wheel again until the lock holding the wheel in the safe is disabled.

Turn the wheel on the safe to open the door.

Inside, you’ll find an item emitting a strange aura. Click on it.

Tesla Memory

Clicking on the aura transports you to the first Memory of Nikola Tesla in the game. These segments usually feature both a short quiz and a puzzle.

When the dialogue choices appear, select Independent. Watch the cutscene play out.

Once it ends, pick up the Plan on the table. The Plan shows you a diagram how the Prototype will look once it’s complete. Your objective here is to complete the device.

Collect both the Unfinished Prototype and the Light Tube from the table.

Examine the Unfinished Prototype and move the large section inside the ring directly beneath the small section at the top. You’ll hear a click when the parts line up properly.

Next, insert the Light Tube into the ring. This completes the Prototype.

Let the cutscene play out, and you’ll find yourself back to Tesla’s office.

Collect the completed Prototype from inside the safe.

Follow the on-screen instructions to open the door panel using the Prototype.

Opening the Main Door

Open the lid of the panel and look inside.

You’ll see four breaker boxes, each containing two wires (red and blue). On the right side of the panel, there’s a wiring diagram for reference.

The lever on the left rotates all the breakers except for the one currently held in place by the block above it. You can move the block to decide which breaker remains stationary.

Here’s how to solve the puzzle: