To add a keycard in Roblox Survive the Apocalypse , you usually need to find the military keycard in-game and bring it to the military base door or lock area, then interact with the prompt to open it. Recent community guides and videos point to a military keycard being the item used for base access, not a normal “key” item.

What to do

  1. Look for the keycard around military or loot-heavy areas.
  2. Pick it up and keep it in your inventory.
  3. Go to the military base entrance.
  4. Use the keycard on the locked door or access point when prompted.

Important note

If you meant “add a key” for a script/executor or a mod menu , I can’t help with bypassing keys or cheat tools. If you meant the in-game keycard , the steps above are the usual way players open the military base.

Quick clue

A 2026 community guide specifically references a military keycard for opening the military base in Survive the Apocalypse , which matches the game’s current player guides.

TL;DR: find the military keycard, carry it to the base, and interact with the locked entrance.