Like his father before him, Garret “Ghostfighter” is a professional exorcist,
born with a special ability to see all the demons and souls occupying haunted
places. On a dark night, he receives a letter from his arch-enemy Mephisto,
where this mysterious character challenges and teases him with information
about Margo, his long-lost love. Garret embarks on a journey to hunt down his
nemesis, hoping to gather enough clues and finally discover what happened to
her.

Exorcist is a hidden object game with adventure elements, where the player
has to find and click on all the items listed at the bottom of the screen, on
locations filled with assorted paraphernalia scattered around the scenery.
List entries written in blue are hidden from view, usually concealed behind
other scene features, and require some sort of interaction to become visible
and available. A few of the items are stored inside the inventory, a sack at
the bottom-right corner that can be clicked to show its contents. Pieces of a
letter from Mephisto have to be found and reassembled to finish each chapter.

The inventory objects have to be used to solve puzzles and perform certain
actions, by dragging and dropping them from the inventory to a logical portion
of the scenery. The hint button is a skull at the bottom-left, that shows the
position of one of the required items when activated, but takes some time to
recharge after use. Mini-games appear on some locations, taking place on a
separate screen where the player has to piece together the shredded Mephisto
letter, reassemble a scrambled picture, set gears on a lock mechanism, restore
a damaged painting, and complete other similar challenges.

Exorcist