The StarCraft II Website now offers Windows and OS X playable demos for Blizzard's real-time strategy sequel. Word is: "If you haven’t yet experienced the intense strategic combat of StarCraft II: Wings of Liberty, you can get into the action today with the newly released demo edition. Featuring full access to the first three missions of the single-player campaign, as well as unlimited access to skirmish mode as the terrans versus an A.I. opponent, the free demo gives you an introduction to the cinematic storytelling and fast-paced gameplay of StarCraft II."