Along with its Zerg-focussed singleplayer campaign, StarCraft II’s Heart of the Swarm expansion will add a training mode to the game, Blizzard has revealed.

“We want to make the game more accessible to players that aren't necessarily ready to jump into a highly competitive scene,” Blizzard president Mike Morhaime told PCGamesN.

“A lot of people do feel intimidated, at least at first, in playing in ranked play. Unranked matches are a big step in that direction. But, even before that, a lot of players never make the transition from the campaign to matchmaking – to playing against people they don't know.”

The training mode consists of matches against the computer, during which the AI gives the player tips and gradually increases in difficulty.

Unranked matched against the AI await those who complete the mode.

“It scripts out some basic builds for you so you know, you're not building willy-nilly,” said Morhaime.

“It gives you more of a safe build to start with. It's there to make people more familiar with the tech tree – because there are differences between the tech tree in campaign and multiplayer.”

Blizzard is also looking to do a better job of exposing players to community-developed resources such as Day[9] and Apollo, Morhaime added.

Heart of the Swarm is expected on March 12, 2013.