A free program for Android, by Café Studio.

Specimen Zero – Online horror is an action-packed, multiplayer, survival horror. It is an online game in which you will have to fight against other players and a terrifying monster in order to survive.

You will explore a huge dark area: secret buildings, a hospital, mysterious labs, and creepy rooms. You will have to solve puzzles and find items in order to escape. You must also avoid making a noise, as the monster will kill anyone who gets in its way.

The online multiplayer mode will allow you to play with friends and strangers in order to discover the secrets of the hospital and the creepy rooms.