Agatha Christie: And Then There Were None retains most of the basic plot elements of Agatha Christie's novel of the same name; the major differences are the inclusion of the playable character, Patrick Narracott, and the creation of a range of possible endings. To further the connection between the game and its source material, Christie's novel was included in the North American PC release of the game. "Agatha Christie: And Then There Were None" was followed by two more games, "" and "". Since they were based on their respective novels, their plots were unrelated to this first game. Reactions to the game were mixed, with many
Daze Before Christmas giant rats, evil toys and living snowmen using his magic powers to turn them all into harmless Christmas presents. He can also collect a power-up that makes him shoot flames which melt ice. Santa's magic can also be used to open the Christmas presents scattered around the levels. These presents may contain enemies, power-ups or bombs. Santa's energy level is represented by Santa hats, which represent how many hits he can take before losing a life. He can collect more hats to replenish lost energy. The game's most remarkable feature is Santa's ability to turn into his evil twin, "Anti-Claus".