Agatha Christie And Then There Were None is an action-packed adventure game set on a remote island where ten strangers are invited to spend a weekend, only to be killed off one by one. As the story unfolds, it becomes clear that each player has a dark secret from their past, and the killer is using their own crimes against them.
The gameplay revolves around exploring the island, solving puzzles, and avoiding the killer's deadly traps. Players must use items found on the island to uncover clues, decode messages, and stay one step ahead of the murderer. With a limited amount of health and resources, players must think strategically to survive as long as possible.