Blizzard have launched three new official mods over on their StarCraft 2 mod page
(for those that don't know what mods are, they're like DLC but you don't have to pay for them). The mods:
Pit your puzzle-solving talents against your opponent's. Match jewels to generate resources - and spend them to attack with StarCraft II units, countering your adversary's forces and destroying their base.
Gather and mix exotic ingredients in a cooking race against your opponents. Choose your recipes carefully to achieve culinary dominance and be counted among the most hallowed chefs of Aiur!
Left 2 Die
Working together with a partner, defend your base from onrushing zerg infested. Protect yourself from the relentless hordes during the night, and build up your forces to strike back during the daytime. Cooperate, or measure your survival in seconds.
You can find them all in the "Custom Game" section - just look for the maps with the little Blizzard logo next to them. Looking forward to trying these out!