This is a Transformers Prime and Mass Effect story set in a universe where both exist together at the same time.
'15 years after the Autobot/Decepticon war had ended, newly promoted Commander Jack Darby joins the crew of the Autobot/Human Alliance frigate 'Normandy'. Meanwhile a Rogue Spectre has awoken an ancient evil and unleashed it upon the galaxy.'
PS. Transformers Prime and Mass Effect are owned by Hasbro and Bioware.