The waves have engulfed civilization, and the Iju have torn our homes apart. The world is plunged into silence, hope rests on the ocean floor. Survivors, welcome to your last refuge—the underwater base. This place is dilapidated but safe; poor but teeming with life. Restore equipment, restore power, and build farms. In this underwater refuge of steel and water, we will rekindle the spark of humanity. And in the very depths of the base, a giant mech slumbers, yearning to awaken. It will become the blade that will bring humanity back to earth, the last guardian in the apocalypse.

[Base Rebuild: From Survival to Rebirth]
Use every space, reboot every piece of equipment. From setting up a basic power circuit to creating a sustainable underwater farm, from expanding a residential area to launching a weapons workshop—every step in construction can mean the difference between life and death. Careful base planning, apocalypse technology development, and increased resource utilization—create a self-sufficient fortress in the deep sea.

['Mech Rebuild: Deep Blade, Born for Battle]
Restore a sleeping giant and unlock a comprehensive weapons system—high-energy torpedoes, pulse cannons, deep cutters... Freely combine loadouts to suit your combat needs and unleash your 'Mech's full potential in real-world battles. Crush swarms of Iju with a barrage of fire, and by increasing maneuverability and defense, prepare for the onslaught of giant Iju!

[Commander Reunion: Female Elite in the Line]
In the apocalypse, they came to the rescue from all sides. The Logistician, a master of resource management; the Tactician, a master of surprise raids; the Engineer, specializing in 'Mech enhancements... Each commander brings unique buffs to your base and 'Mech. By skillfully combining their talents, create an elite squad—resilient and powerful. Together, forge a path through the abyss and ruins to a new future.

[Explore the Ruins: The Depths Melt, Seeking Civilization]
A former city lies beneath dark currents, but it also holds the treasures of the apocalypse. Form an expeditionary force and infiltrate the dangerous ruined city. In search of lost power cores, scarce supplies, vanished technologies... Every exploration can yield a harvest that could change everything, but carries the risk of a surprise attack from the deep-sea Iju. Here, risk and reward are inseparable.

[Unity Alliance: We March Side by Side]
One man is no match for the other. The Abyss demands a response. Join an alliance or create your own to work with other survivors to share technology, exchange resources, and conduct a coordinated defense. Participate in alliance missions, confront waves of gigantic Iju, and fight for strategic deep zones. You are not alone in the darkness. Together, we will become humanity's strongest line of defense in the abyss.

>Download Now! Return to Humanity's Last Base<<