Events in the shooter Secrets of the Moscow metro occur after a large emission of radiation. All the survivors managed to hide in a secret complex underground. Its code name atom-5. However, not everyone was so lucky. Many residents of the capital were not destroyed and were forced to wander around the metro branches. Constant contact with harmful and toxic particles depending in the air led to various mutations. In people, tentacles or cockroaches began to grow. But the most important thing is that they lost their minds and began to devour all living things.

The main character was a student. He managed to survive and preserve the human appearance. Now he wants to get to the ground city to continue his existence. The location of the refuge is unknown to him. However, a map was created that could bring there. The problem is that someone tore the pointer into many pieces. Now Vasily needs to collect them and recreate the route before the monsters get to his flesh.

The secrets of the Moscow metro offer seven types of weapons to combat zombies. Among them there will be pistols, machine guns and guns. Ammunition and first -aid kits are replenished independently. The infected are divided into 5 different types. They differ in color and the way of attack. In tunnels there are taracans, a driver with claws instead of hands, a special forces in a gas mask, unknown in a cloak and excessively active grandmothers. Despite the fact that the hero constantly moves, exploring the desert stations of the metro, the background of locations is not very different. Darkness and empty rooms reigns around. Shots are accompanied by the corresponding sound effect. Sound quality significantly exceeds the level of graphics.