In Endgame: Singularity, the player is an Artificial Intelligence;
a computer program that has just gained sentience. Realizing that if
humanity becomes aware of its existence it will be terminated, its goal is to acquire the necessary knowledge to keep itself hidden, and eventually become "The Singularity".
To reach this goal, the player takes over more and more computers and eventually builds his own. These machines' processing power can be used for research, and to make money. With this money, the player can buy robots, which allow him to manipulate the outside world and protect himself.