Dead Space 2: Severed, Top Spin 4 and MLB 2K11 demos now on Xbox LIVE

A slew of new content has hit Xbox LIVE, this morning. The highlight: Dead Space 2: Severed, a new two-chapter add-on that puts players in the shoes of Dead Space: Extraction‘s Gabe Weller, as he and Lexine Murdoch attempt to escape the necromorph outbreak on the Sprawl.

It’ll run you 560 Microsoft Points and 1.43gb of hard-drive space. Queue up Severed through here.

Also live, a couple of demos from 2K Sports. The MLB 2K11 demo can be queued up through here (725mb). A demo for their latest tennis outing, Top Spin 4, can be queued up here (954mb).

Dead Space 2: Severed and the two 2K Sports demos will go live on PlayStation Network during the weekly update later today.