In the challenging world of Atomfall, players will encounter a second radio tower nestled within the treacherous Casterfell Woods. Just like the tower located in Slatten Dale, accessing this one requires a special keycard that is not readily available. Instead, players will need to embark on a quest across the Casterfell Woods to uncover it.
The search for the keycard leads players to a hidden bunker filled with Ferals and hazardous toxic gas. If this tense adventure sounds intriguing, read on to discover the exact location of the Casterfell Woods Radio Tower Keycard.
Locating the Casterfell Woods Keycard in Atomfall
The keycard is cleverly concealed in an area known as Bunker L9, located within the Casterfell Woods at coordinates 23.3 E, 90.6 N. Be prepared for encounters with several Feral enemies lurking outside the bunker, setting the stage for the challenges that lie within.
Upon entering the bunker, players will find numerous Ferals inside, wandering and mumbling to themselves. It’s advisable to eliminate these foes before delving deeper into the bunker. A bow and arrow setup allows for a stealthy approach to dealing with them silently. Alternatively, a high-powered firearm will work, especially if players aim for headshots while avoiding infection.
After clearing the area of Ferals, players should turn right from the entrance and ascend the stairs leading to an office. Here, a toxic gas will fill the upper level, posing a significant hazard that inflicts damage and Poison. To navigate through this treacherous environment safely, players need to acquire a Signal Redirector, which can be found later in the game.
In addition to the stairs, there’s a room with a sizable hole in the wall. Players will receive a prompt to equip the Signal Redirector upon entering this area. On the other side of the hole lies an electrical panel that can be activated with the Redirector. Afterward, climb some crates to access a vent and return to the gas-filled room. Nearby, the Ventilation Override console will now have power—pull the lever to clear out the toxic gas.
If players have not yet secured the Signal Redirector, it is possible to sprint through the gas to grab the keycard quickly and make a hasty exit. However, it’s crucial to have healing items and Antidotes on hand to recover health rapidly during this risky maneuver.
With the gas successfully cleared, head back up the stairs, where the Casterfell Woods Radio Tower Keycard, along with a Training Stimulant, will be located on a desk. Players should take the opportunity to loot the bunker for any leftover items and crafting materials before proceeding to the radio tower.
Finding the Casterfell Woods Radio Tower in Atomfall


Players can locate the Casterfell Woods radio tower near the center of the map, specifically at the coordinates 24.8 E, 89.3 N. The access path to the tower will be fenced off and typically guarded by outlaws that need to be dealt with prior to entry. Although the tower can now be accessed, players will not be able to utilize the keycard unless they have first powered up the Data Stores inside The Interchange using Atomic Batteries.
To proceed, players must reactivate the Data Stores until they hear an NPC named Joyce Tanner broadcasting over the intercom. She will instruct players to meet her at Data Store Charlie, where she will explain her need to use the radio towers for communication with the outside world. After completing this task, power will be restored to the radio towers, enabling access to the Casterfell Woods Radio Tower.
Return to the tower, use the keycard to gain entry, and activate the console inside. Players will receive communication from Joyce and also discover a note about the keycard’s details, though this information may no longer be pertinent at that point.