A demo for Midway's upcoming Area 51 sequel is up on Xbox Live Marketplace weighing in at 583MB.
With the game due out this summer on PC, PlayStation 3 and Xbox 360, a demo so soon is a bit of a surprise, but we're not complaining.
We're not yet sure what you can actually do in the demo, but we do know you won't be able to do any of it if you live in Germany or Asia, where the demo's not available.
Fortunately it is there for both Gold and Silver Xbox Live users, judging by Major Nelson's post, which also includes the following handy synopsis:
"Modern day fears come to life in a familiar, yet extraordinary setting: A small American town swarming with alien life. The government is desperate, struggling to contain secrets so terrible they can no longer be kept.
"Everything hinges on the actions of Aeran Pierce, a former Special Forces assassin thrown into one of the most explosive moments in American history."
Let us know what you make of it.