XCOM: Enemy Unknown will have a PC demo available today on Steam, with a console version "available soon." The demo covers two levels of the strategy game's single-player tutorial campaign, which also introduces the XCOM base, where all the training, research and alien autopsies happen.

We've been impressed with how the game is shaping up so far, both its single-player campaign, seen in the video above, and multiplayer component. XCOM will admit new recruits on October 9.