Blizzard has added a new feature to Starcraft 2 called Spawning, which enables players who don’t own the game to still play with friends.
Spawning featured on the original Starcraft, and allowed gamers who didn’t own a copy of the game to join a game-owner’s party, and get in on the “Starter Edition” action.
Players who don’t own the game will be levelled-up to match the expansion of the players in the party, for example: a starter edition player will gain access to the Heart of the Swarm content if they join a HotS player.
Keep in mind that not all content can be accessed for free. Starter Edition players still won’t have access to the entire single-player campaign, and can only play as Terran.
Despite the limitations, it’s still a really great way to give friends a chance to play the game without paying for a copy.