In Mass Effect, the galaxy is trapped in an endless cycle of extinction. Every 50,000 years, an ancient machine race invades the galaxy. With ruthless efficiency, the machines wipe out all advanced organic civilization. They leave behind only the scattered ruins of technology, destroying all evidence of their own existence.
The fight to stop this extinction event has become the most important mission in the galaxy. Commanders of the SSV Normandy must take their elite recon squad across a galaxy in turmoil, in a desperate race to stop the return of an enemy without mercy. To stop this enemy, they must act without remorse, without hesitation, and outside the limits of the law. Their only imperative is to preserve the safety of civilized life in the galaxy - at any cost.
Below are the characters on the site that cosplayers have depicted.