Last Fortress: Underground invites players to create and manage their own empires. Set in a barren land devastated by a zombie apocalypse, you play as one of the few survivors. The world has been rebuilt, but challenges and threats still loom around your new home.

Amidst an epidemic outbreak, Last Fortress highlights the resilience of survivors as they unite to overcome their fears and anxieties. A new world is crafted according to your vision. Members of your organization follow your directives to build a base. The game provides basic tools to fend off zombie threats. Members take on roles such as observers, farmers, doctors, and cooks, and it's up to you to manage their skills. Managing these roles is crucial, as unexpected challenges like surprise attacks or betrayals can arise, offering valuable experiences.

Construction, development, and survival in Last Fortress are brought to life with highly realistic 3D graphics. The narrative unfolds through dialogues and short films. As the leader of this miniature world, you must make decisive choices. You can interact with the game using sliding, tapping, or zooming in and out. Venture outside the base to seek growth opportunities and strengthen your survival instincts. Instead of facing these tasks alone, you can collaborate with friends and join the community of survivors, enhancing the development conditions of your base with the support you receive.