Mass Effect 3: Retaliation

The battle to save the galaxy rages on and a familiar foe returns in the largest downloadable content pack to-date for Mass Effect 3 multiplayer! Mass Effect 3: Retaliation ups the challenge by adding treacherous environmental hazards to existing maps and will introduce the infamous Collectors as a new enemy faction in multiplayer.

Also making its way into the Mass Effect 3: Retaliation pack is a brand-new challenge system that will reward players for their accomplishments in multiplayer. Thi...