"Who Pressed Mute on Uncle Marcus" is an engaging full-version adventure game designed for Mac users. This unique FMV (Full Motion Video) title invites players into a quirky murder mystery where Uncle Marcus has been poisoned. The gameplay revolves around a yearly family quiz, where players must interact with various characters to gather clues and unravel the mystery surrounding the poisoning. The blend of humor and suspense creates a captivating atmosphere that draws players into the storyline.

As players progress, they will encounter a range of eccentric family members, each contributing to the narrative's depth. The game emphasizes decision-making, as choices made during the quiz can impact the outcome of the story. With its intriguing plot and interactive format, "Who Pressed Mute on Uncle Marcus" offers a fresh take on the adventure genre, encouraging players to think critically and piece together the clues to save Uncle Marcus.