In Geist, players take on the role of a spectral operative searching for their physical body, which is being kept alive somewhere in an expansive complex. As they explore and collect the energies of indigenous spirits, they must use them to build up their power in order to unravel the mystery. Throughout their journey, players can possess a variety of creatures from human soldiers to dogs and use special abilities such as travelling through cracks, interfering with electronics and moving objects. Along the way they will need to be careful as some spirits are friendly while others are not; enemies must be defeated using an array of weapons, equipment and skills.