When Blizzard announced that StarCraft 2 would be split into three different games years ago, there was quite a bit of weeping and gnashing of teeth -- lots of complaining that the new corporate entity of Activision Blizzard was triple-dipping our wallets. But time heals all wounds and in this case, the great reviews of the full-featured first title didn't hurt either.

So it may come as something of a surprise to be reminded that as much fun as StarCraft 2: Wings of Liberty was, you've got two more campaigns coming your way. At a recent press event inside Blizzard HQ in Irvine, California, we got to take a look at two single-player missions from Heart of the Swarm, the first expansion pack-priced followup, focused on the popular Zerg race.

One note of warning before we begin: There are story elements revealed in these missions that will sorta, kinda spoil the plot of Wings of Liberty if you haven't finished it yet. If you aren't done with Jim Raynor's Terran campaign, play that and then come back. Otherwise, feel free to read on.