IN The Adventures of Fatman the user will become a crime fighter in the city of Shadowlan. Previously, he was a simple-minded fat man who led a measured, boring life. However, everything changed when, as a result of an unsuccessful act of sabotage, a local villain called Toximan arose in a large corporation. He wants to enslave all the inhabitants, and the hero needs to come up with a plan to prevent the criminal’s evil plans from coming true.

Events in The Adventures of Fat Man begin with an explosion at the chemical plant for the production of Mary & Kate cosmetics. The superhero manages to find out that the company's CEO was involved in this. However, further investigation is hampered by the appearance of Toximan. With the help of his developments and the use of various technologies, he begins to turn people into zombies. All converts unquestioningly obey their master and help him do evil deeds, joining the ranks of the dead army. The developers have created more than 30 locations where battles will take place. The scenery will include city streets, a diner, a mysterious basement and others. Along the way you will meet about 20 different characters. You have to interact with all of them. All replicas will be displayed in a special dialog box. In addition, audio commentaries are available.