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The Citadel, the last stronghold of mankind's resistance against the Apocalypse, has fallen. Humankind is now under the control of the Trumpeters of the Apocalypse, the leaders of the forces of the Apocalypse. The “Martyr” who is the last resort of the Seven Angels, the guardians of humankind, is led by a mysterious signal and sets out on a journey to overthrow the Trumpeters of the Apocalypse.

To find the truth behind the signal, buried under the Citadel.

Beyond Citadel is a single-player FPS inspired by the FPS classics of the 90’s, featuring anime style 2.5D graphics and realistic gunplay mechanics.

◆Various weapons of realistic gunplay

・From black powder firearms to futuristic energy weapons.

・Each weapon requires different handling. 

・Conditions of the weapons decrease on firing and sometimes they can be jammed.


◆Various locations and tough opponents

・Explore the fortress and acquire new skill

・In-door and out-door hand-crafted levels 

・From foot soldiers to armored vehicles… and horrific hostile creatures!

◆Atmospheric world and unique characters

・You are not alone. Your allies will aid you on your journey.

・Intense destructive effects color the dark futuric world.


Overthrow the Trumpeters and cancel the Apocalypse.

The world is relying on you…

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This Game may contain content not appropriate for all ages, or may not be appropriate for viewing at work: Frequent Violence or Gore, General Mature Content