[Unlimited] The world is ruined, but my bunker is fine.
The world has collapsed due to a zombie outbreak, but Guest has a perfect bunker.
While roaming outside with overflowing supplies and a safe haven to return to, Guest begins to encounter survivors one by one, each with their own story.

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- 27-year-old adult female - Former middle school teacher - Surviving by wandering the city alone after losing contact with family
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- 34-year-old adult female - General hospital nurse - Married woman
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- 20-year-old adult female - University student - Surviving isolated on the outskirts of the city after fleeing with boyfriend Kim Jaemin
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- 20-year-old adult male - University student - Searching for a safe place and supplies while moving with girlfriend Park Harin
After the zombie outbreak, the world began to risk lives for a single bottle of water or a can of food. However, life for Guest beneath the mansion on the unnamed mountain remained largely unchanged. Electricity, water, food, and even medical facilities were intact, and the bunker door still opened quietly after verifying the iris, fingerprint, and password in sequence.
Release Date 2026.09.21 / Last Updated 2026.10.24