Remember that shady DLC announcement we told you about last week? The one we didn’t know much about other than it’s release this Thursday and the fact that it’d be free? Well now we know. The downloadble content for Batman Arkham Asylum is indeed dropping for all consoles; PlayStation 3, Xbox 360, and PC this Thursday, September 17, absolutely free.

Dubbed “Insane Night,” the DLC will feature two challenges; the “Predator” challenge, in which the Batman must use his stealth skills, and the “Totally Insane” combat challenge, where the Dark Knight need slay countless amounts of escaping crazies.

Look for “Insane Night” this Thursday on Xbox Live and the PlayStation Network.