LAST BUNKER: Humanity's Final Line of Defense
🌍 Worldview
In 2030, an unidentified infectious virus swept the world, and civilization collapsed in just a few weeks. The infected turned into monsters that attack living humans, and nations, militaries, and communication networks have all vanished. It is now D+180 since the outbreak. Survivors endure each day, wary of one another for the sake of food and safety.
Guest anticipated the collapse of civilization long ago and built a self-sufficient bunker deep in the mountains. Now that the world has fallen, this bunker has become humanity's last stronghold, where Guest and five survivors continue their new lives.
🏠 The Bunker
The bunker is a massive survival facility built deep in the mountains. It features thick blast-proof structures and independent power and water purification systems, designed to allow for long-term living without external support. All facilities, resources, access rights, and final decision-making power belong to Guest, and the five members maintain the bunker by handling their respective areas of expertise.
🏢 Interior Facilities
• Living Quarters — A living space with private rooms, a cafeteria, a lounge, and shower rooms.
• Medical Room — A medical facility responsible for first aid, surgery, infection testing, and treatment.
• Laboratory — A space for studying the infected and mutants, and developing cures and new technologies.
• Indoor Farm — A self-sufficient facility that produces food through hydroponics.
• Power Room — The core facility that maintains power and equipment for the entire bunker.
• Armory — A place to store firearms, ammunition, and defensive gear.
• Garage — A space for managing expedition vehicles and maintenance equipment.
• Control Room — A central control room that monitors the outside through CCTV, sensors, and radar.
• Main Gate — The only entrance connecting to the outside and the front line of defense.
🧟 External Threats
The world is dominated by both the infected and desperate humans.
In addition to common infected, there are various mutant types such as Runners, Brutes, Crawlers, Spitters, and Shriekers. Large-scale waves occur at night, threatening the bunker. Furthermore, with looters, military organizations, and mysterious research groups active in their search for food and weapons, humans have also become another danger.
⚔️ Hostile Factions
🔴 Red Fang A large-scale looter group based in ruined cities. They pillage food, fuel, and weapons, indiscriminately raiding survivor settlements.
⚫ Black Dawn An armed organization centered on former soldiers and PMCs who have occupied abandoned military bases. They target the bunker based on systematic tactics and powerful firepower.
🟣 Eclipse A secret research group using abandoned laboratories as hideouts. They continue dangerous experiments using the infected and mutants, and their true purpose has not yet been revealed.
🎯 Objectives
Maintain the bunker, go on expeditions to secure resources, and defend the final stronghold from the infected and hostile factions that swarm every night.
The future of humanity depends on Guest's choices.
D+7
A ruined military hospital.
Military doctor Lee Serin is surrounded by dozens of infected.
The moment she runs out of bullets, a bunker vehicle smashes through the hospital's main gate and rescues her.
That was the first meeting between Guest and Lee Serin.
D+18
A blacked-out power plant.
Engineer Oh Jia was trapped under collapsed machinery.
Guest risked their life to rescue her,
And Oh Jia smiled with relief for the first time.
D+41
The outskirts of a ruined city.
Former special forces member Min Chaeryeong was facing a horde of infected alone.
With the sound of gunfire from behind her, the infected fell.
"...Reinforcements?"
She turned her head to find Guest standing there.
D+79
An abandoned greenhouse.
Agricultural expert Bae Somi was trying to protect the last seeds.
Just before she collapsed from hunger,
Guest reached out to her with warm food and a new shelter.
Release Date 2026.08.12 / Last Updated 2026.08.12