Atomic Heart's Polygon Testing Grounds combine many mechanics of the game to create a puzzling challenge. There are many Testing Grounds to discover and complete, each one providing rare loot. You will likely encounter Polygon Testing Grounds 1 first, which may leave you wondering how to enter and complete Testing Grounds 1 in Atomic Heart.
How to complete Testing Grounds 1 in Atomic Heart
Atomic Heart's Polygon Testing Grounds 1 requires the use of Shok. You must also use a Dandelion Camera to open the door for this facility. We have marked the location of the hacking station, Testing Grounds 1, and camera in the image below.
Once inside, proceed until you come to a wall. There is an opening in the ceiling that reveals some magnets. Use Shok on the magnets to lift the wall. Cross the room and enter the door before the wall comes down.
Make your way to the center platform using Shok to raise the walls. Then, stand on the red square to the left of the raised platform. Jump to the platform that has the red and blue magnets. Jump to the platform with the door and proceed.
Proceed through the hallways until you come to a tunnel. Climb into it. Move forward and take the first right. Turn left and drop into the lower tunnel. Go left and exit the tunnel. You will find yourself in an open room—go to the door with the orange light and open the chest on the dancing robot. This will reward you with the Fox-Handle.
Turn around and go through the door beside the tunnel. Go to the back right corner of the room with the red machinery. Enter the next room and walk around the corner, go up the stairs, and through the hole in the wall. There will be a break room to your left.
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Go through the door and use Shok to move the wall. Continue and go through the door on the far side of the wall. There will be another door with orange light and a dancing chest robot. Open this to claim the Expansive Converter.
Turn and head back to the room with the Shok walls. Shok the magnets again to reveal a new path on the right. Continue forward until you come to another room with magnets and walls. You will need to use Shok to find a path across the room.
Jump to the red platform to your right, then the blue one in front of that. Shok the magnets, jump, and dash to the lowered red platform before you. Carefully walk on the red wall attached to the platform and Shok the magnets. Jump to the blue platform before you and then the red wall. Walk forward to the red platform to the left of the exit and Shok the magnets.
Use your scanner, and you will see a wire leading from the door to a puzzle. Solve the puzzle relay by aligning the colors to open the door and Shok the magnets to raise the platform you are standing on to reach the blue platform in front of you. Jump across and go through the door.
Go through the hall and turn left. You will come to another door with an orange light and a chest robot. Open this to claim the Extended Magazine and Reverse Shot. You can go back and head up the stairs to claim some loot, or call the elevator and exit Testing Grounds 1.
For more information on Atomic Heart, check out Can you respec in Atomic Heart? and Is Atomic Heart on the Xbox Gamepass at launch? on Pro Game Guides.
Justin has been diving into fantasy worlds since he can remember. He is a certified nerd who has a deep love of reading, writing, and hiking. He has been writing since his college days, but specifically in gaming for two years. His favorite games are The Legend of Zelda, Pokémon, Hollow Knight, Celeste, and Banjo Kazooie.