The endless darkness and the somber passages of a military complex have become an abode of evil, filled with thousands of blood-thirsty creatures. You cannot let them get out of the facility. You will be provided with explosives to help you gain access to the teleports from which pour thousands of pitiless creatures. A stationary gun will aid in the defense of the area. You have been granted access to the most advanced weapons technology money can buy. As you earn your pay, you can equip yourself with additional weapons and biomechanical implants that will make your fighting abilities superhuman. This shooter has two playing modes: campaign and survival and two characters. Features also include unlimited playtime, ten levels, 9 unique weapons and 6 types of monsters to defeat.