Mass Effect 3: Omega

Backwards compatible DLC.

Omega is a downloadable content (DLC) pack for Mass Effect 3. It is built like a side quest that can be accessed from the main game when Commander Shepard receives a message from Aria T'Loak, the asari Pirate Queen. It appears that the Omega, a space station serving as a safe haven for criminals and dissidents and ruled de facto by Aria, has been captured by Oleg Petrovsky, one of the top generals working for the human extremist organization Cerberus. Shepard travels to Omega and attempts to help Aria to re-conquer her domain