Kasumi's Stolen Memory, the first paid downloadable content pack for Mass Effect 2, is now live.
The add-on for the BioWare space opera was due to release yesterday, but the Xbox 360 version didn't appear until the middle of the night, UK time.
IGN cited "server troubles" and was told by an Electronic Arts spokesman that the company was working with Microsoft to resolve the issue.
You can pick it up from the Xbox Live Marketplace for 560 Microsoft Points (£4.76 / €6.72). PC gamers can pay the same amount in the equivalent BioWare Points.
We've been playing Kasumi since early this morning; look out for our review soon.