Deus Ex Machina

Deus Ex Machina is an achievement/trophy in Deus Ex: Human Revolution. It is gained by watching all four endings in the game.

Strategies
The player should save their game while inside the final room. In this room, Eliza Cassan will present the player with three switches and a passageway to a fourth switch, each switch corresponding to each of the different possible endings. The player can choose an ending, reload the game to this save point, and then select a different ending in succession until they have watched all four possible endings.

Alternately, the player may choose to play through the game from start to finish four separate times to earn the achievement.