Navigating the mysterious island in Sons of the Forest requires more than just basic survival instincts and improvised weaponry. To uncover the deeper narrative secrets and obtain high-tier gear, players must gain access to underground bunkers guarded by high-tech security doors. Locating the Maintenance Keycard is one of the most critical mid-game milestones, as it serves as your key to unlocking several restricted zones across the map.
Prerequisites and Necessary Tools for the Search
Before setting out to locate the keycard, you must first obtain the shovel. Finding the shovel requires both the rebreather and the rope gun, as it is located deep within a complex cave system that demands aquatic and zipline traversal. Attempting to search for the maintenance bunker without these essential tools will result in a wasted journey.
Keeping up with daily gaming news often reveals how players streamline their progression routes by gathering essential survival gear in the early hours. Ensuring you are well-equipped with batteries, weapons, and food beforehand will make the subterranean dive far smoother.
Locating the Dig Site and Bunker Entrance
The Maintenance Keycard, specifically designated as Maintenance Keycard A, is hidden within an underground facility located in the northwestern quadrant of the island. On your GPS tracker, look for a green pulsing point of interest surrounded by golf carts and abandoned survey equipment. Once you arrive at the open clearing, equip your shovel and interact with the loose dirt between the vehicles.
Digging away the soil will uncover a metal hatch labeled Maintenance A. Opening this hatch allows you to descend a ladder into a clean, modern facility that contrasts sharply with the dangerous surface wilderness above.
Finding the Keycard and Unlocking Restricted Doors
Once inside the bunker, walk down the main hallway toward the living quarters and kitchen area. You will discover a desk sitting beside a laptop where the keycard sits clearly visible on the surface. Pick up the card to permanently add it to your inventory, granting instant security authorization for sealed doors across the island.
With the Maintenance Keycard in hand, you can return to previously locked bunker entrances, such as the Food and Dining facility. Scanning the card at the illuminated security keypads will unseal doors that lead to essential story items, high-grade armor, and additional keycards required for endgame progression.
