Starter Edition members automatically unlock whatever content their party members can access.
By Tim Colwill on June 5, 2013 at 4:14 pm
Once upon a time when I was a wee tadpole (government experiments, don’t ask) you could play Blizzard games together with your friends via a process known as spawning — taking your CD over to their computer and installing a “spawned copy” that could play with your copy over the network.
It was, not to put to fine a point on it, the best thing ever, especially for poor children who could only afford one copy of the game.
Well! Spawning has returned, albeit in a slightly different form: Blizzard have announced that now anybody with a free StarCraft II starter edition who parties up with somebody who has purchased the full game will get access to all the content that their party member has. This means that starter edition owners can be upgraded to both Wings of Liberty and Heart of the Swarm content depending on who they group up with — all for free.
Check out the full explanation at Blizzard’s site. Excellent stuff!