Atomic Heart's Polygon Testing Grounds combine many game mechanics to create a puzzling challenge. There are many Testing Grounds to discover and complete, each providing rare loot. You will soon encounter Polygon Testing Ground 6, which may leave you wondering how to enter and complete Testing Ground 6 in Atomic Heart.
How to complete Testing Grounds 6 in Atomic Heart
Head to the tower in this area across the lake and hack into a security camera. Use this to open the door to Polygon Testing Grounds 6. Exit the tower, cross the lake and enter the Testing Grounds. Here are all the locations for Polygon Testing Grounds 6 in Atomic Heart.
Defeat the robot in the tunnel and swim forward. Take a left and climb onto the platform. Call the elevator, grab the loot to the left while you wait, and ride down into the facility. There is a break room to your left where you can save, craft, and upgrade gear if needed. The left hall will lead to the two rooms with loot; grab what you can and head through the gate on the right.
Jump across the gap and reach the red wheel. Interacting with this will turn the diagram, creating new obstacles and eventually opening a path forward. Rotate the wheel once. Jump on the left side of the diagram and climb up. Open the locked door there. Return to the wheel and spin it three times. Climb up and go through the door.
Loot the room before going through the door on the left. This will take you to a room with machines and a break room on the left wall. On the right is the first treasure room. Go in and open the chest attached to the dancing robot to claim the PM-Extended Mag.
Related: Atomic Heart – Polygon Testing Grounds 1 Walkthrough
Go back to the chamber and head upstairs. Destroy the robots that spawn; Mass Telekinesis is really strong here. Head down the broken turbine. Go through the hole in the floor to reach the tunnels. The right tunnel will lead to a chest with loot. Open this and go left. Continue to the next junction, turn left, and then climb up.
Once up, turn around and go open the second chest robot. This contains the Kalash-Collimator. Go out of the room and head upstairs. Take the left path, and you will find another room with rotating diagrams.
Do not turn the diagram yet. Climb up the yellow boxes and go through the hole in the floor on the raised platform. Unlock the door and loot the chest inside this room. There is also another wheel here.
Related: How to jump in Atomic Heart
Rotate the main wheel three times, then rotate the wheel in the room once. Go downstairs, and you should be able to jump onto the yellow handholds and climb to the yellow pole below. You will need to jump and dash to grab the handholds. Climb the pole all the way up, and then jump to the top ledge.
Pull yourself up and head into the room. Turn left to find the last remaining chest robot and the Electro-Electromagnetic Emitter. Turn around, call the elevator, and escape Testing Grounds 6 with your hard-earned loot.
For more information on Atomic Heart, check out How to throw objects in Atomic Heart and Is there fast travel in Atomic Heart? 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.