Testing Ground 12 in Atomic Heart presents one of the final optional subterranean challenges for players looking to fully upgrade their arsenal. Tucked away near the hospital shoreline, this facility combines intricate magnetic platforming puzzles with challenging combat encounters. Clearing this facility requires patience, spatial awareness, and a strong set of elemental abilities.
Finding the Entrance to Testing Ground 12
Locating Testing Ground 12 requires players to travel toward the eastern coast of Facility 3826 near the Infirmary area. Access is blocked until players progress past the Theater story arc and cross the large bridge leading into the hospital grounds. Search along the rocky shoreline to uncover a cave opening that leads directly to an elevator shaft.
Players who regularly follow daily gaming news often highlight this polygon as a key milestone before entering the late-game storyline. Taking the elevator down will place you directly at the start of the first puzzle chamber.
Solving the Magnetic Platform Puzzles
The initial chamber revolves around rotating valve mechanisms and shifting electromagnetic coils. Rotating the main valve to specific notch positions aligns ceiling magnet sets that react to your Shok ability. Zap the designated coils to raise or lower platforms in sequence, allowing you to traverse the chasm safely.
After crossing the gap, you will encounter a code lock guarding the lower corridors. Solving the lock grants access to deeper sections where additional magnetic floor puzzles await before reaching the exit.
Combat Encounters and Boss Tactics
Between puzzle rooms, Testing Ground 12 forces players into an arena battle against a heavy NA-T256 "Natasha" robot accompanied by airborne Owl units. Focus your heavy explosives or high-damage ballistic weapons on the Natasha while avoiding surrounding laser fire. Utilizing abilities like Polymer Shield or Frostbite helps manage crowd control during the fight.
Defeating the mechanical guardians unlocks access to the remaining sections of the underground bunker. Make sure to rest and restock supplies at the nearby safe room vending machine before proceeding.
Claiming Loot and Blueprint Rewards
Exploring all corners of Testing Ground 12 rewards players with three distinct Lootyakin chests. The Bronze chest yields the KS-23 Thermal Scope blueprint, enhancing shotgun precision over longer distances. Proceeding further reveals the Silver chest containing upgrades for the Kalash and Fat Boy weapons.
Reaching the final Golden Lootyakin unlocks the Electro Energy Vampire Block and the Pashtet Reflex Blade blueprints. Collecting these valuable upgrades provides a significant power boost before taking the elevator back up to the surface world.
