<P> Agatha Christie: And Then There Were None (also simply known as And Then There Were None) is a 2005 point - and - click adventure game developed by AWE Productions and published by The Adventure Company for Microsoft Windows . It was the first in The Adventure Company's Agatha Christie series . The game is a detective murder - mystery; it begins with nine people, including Patrick Narracott, the playable character, who meet and journey to the fictional Shipwreck Island . There, two additional onscreen characters are introduced, and the story then follows the events that unfold . </P> <P> 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, Agatha Christie: Murder on the Orient Express and Agatha Christie: Evil Under the Sun . Since they were based on their respective novels, their plots were unrelated to this first game . </P> <P> Reactions to the game were mixed, with many reviewers polarized in their opinions: some calling it a good adaptation of the novel; others, an extremely poor adventure game . Several reviews harshly criticized the game's character design and graphics as being archaic and outdated, whereas others praised aspects such as character dialogue and a captivating story . </P> <P> And Then There Were None is a point - and - click adventure game, played from a third - person perspective . Most of the interactive elements of And Then There Were None consist of asking other characters questions, and collecting and combining items . The player can carry items using an inventory system, consisting of screens which can show up to twelve items . New items go into the first available slot, and these items can be combined or examined throughout the game . The game's cursor is context - sensitive, and changes into a rotating gear when held over an item the player can interact with and use . And Then There Were None features a 2.5 D graphics engine, which combines pre-rendered backgrounds with 3D - modelled characters . </P>

Who killed everyone in and then there were none