During the time after the Morning War, the Geth gave themselves a new goal: build something that would house every Geth program.ģ00 years after the Morning War, the Reaper Sovereign sought the assistance of the Geth in starting the Reaper invasion. They essentially share their brain power with each other, creating a neural network allowing for more complex abilities. An individual Geth has only a basic intelligence equal to what we would consider animal instincts, but when they are found in groups they can reason, analyze situations, use tactics and do things that other intelligent races can do as well. The closer the Geth are physically to each other, the more intelligent they individually become. Following this event, the Quarian race was confined to fleet of ships traveling through space called the Migrant Fleet. The resulting war (called the Morning War by the Geth) ended with the Quarians' defeat, and they were driven off their home planet. The Quarians panicked and began firing, at which point the Geth picked up weapons of their own and defended themselves. An attempt was made to disable the Geth but it failed.

Through the extensive Geth network, the synthetics began gaining sentience, which greatly concerned the Quarians. The Quarians slowly added more functionality to the Geth to allow them to do much more complex tasks. They were initially created as servants to their Quarian master for labor and war purposes.

The Geth were created by the Quarians some 300 years before the events of Mass Effect.

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