Final Fortress Idle Survival is full of annoying zombies. Players expand their base to produce gas, creating weapons against the zombies outside. You start with the first floor of the base, accumulating gas to open the next floors. Each floor has a different function. Players also need to automate as they progress. Recruit a person to manage the room; they will take over the gas collection even when you are not there.
Be careful of the zombies; they can attack at any time. Kill them as quickly as possible; this will give you gas. When the base is opened to the sixth floor, you can use the means to find more life and help them. You need to speed up the upgrade of your base. Because only when you reach the ninth floor will the game give you a toolbox. It will help you defend the base when the zombies attack more and more fiercely. Besides, more interesting things are open for you to explore. Get ready for this long war. The fate of the world is up to you! Good luck.