Invocation is a First-Person Ghost Photography Simulator. Play as a paranormal investigator and explore dark, atmospheric locations where lost spirits still lurk in the shadows.

Sarah Winstead is killed in a car accident at a very young age, and awakens to find herself lost in dark labyrinth called the Otherside. Searching for a way back, Sarah encounters a powerful creature which promises to take her back to the world of the living, but at a price she will only come to know much later. Desperate, Sarah agrees, and is quickly revived. She awakens once again in a hospital bed, embraced by her parents who were assured by doctors that she would not survive.

Years later, Sarah has recovered from her car accident, but is still grappling with her near death experience. She believes that her brief escapade into the afterlife has awakened her ability to feel the presence of ghosts who wander amongst the living. She finds herself frequently disturbed by the many spirits who latch onto her, believing that she can somehow return them back to life.

Sarah moves with her family to Echo Canyon, a place where spirits pour out of a rift between the real world and the Otherside. The dark energy terrorizes the residents of Echo Canyon, many of whom are driven insane or killed under mysterious circumstances. 

Determined to find and seal the rifts to the Otherside, Sarah teams up with an amateur ghost hunter named Jacob. Jacob has long searched for the spirit of his deceased sister, Lily, but has yet to find even a trace her. Recognizing Sarah's potential as someone who can locate spirits, Jacob lends Sarah his ghost hunting equipment and guides her in tracking down the spirits coming from the Otherside.

The objective of this game is to take photographs of ghosts who hide in various rooms of the level. The ghosts can only be seen through the viewfinder of your camera. You will sometimes need to solve environmental puzzles in order to find ghosts. 

Many ghosts will become hostile when seen in the viewfinder, and will attempt to attack you. If you are attacked too many times, your sanity will be depleted and you will have to restart the case. You will have to watch your sanity levels, as well as your camera battery life.

You can find items scattered around the levels which will restore your sanity and battery life. Items found during cases can be sold/purchased in the store menu, and you can upgrade various stats in a separate upgrading menu.

This game features the following:

• Immersive levels for the player to explore.

• Paranormal cases to take on.

• Various ghostly enemy types.

• A ghost-hunting gameplay system with the following tools:

• An inventory system and collectible items.

• An item shop and a stat upgrade system.

• A retro, PSX visual style.

• Custom-made low poly 3D assets.

• Atmospheric sound design.

• A mysterious and compelling narrative.