The first game in the starcraft duo, you are put in control of 3 different races, terran (humans), protoss (aliens), and the zerg (evil aliens). Each of these races have their own set of units, building, and upgrades that you can deploy in real time strategy combat. The game offers three campaign modes, one for each race, that introduce you to the story. You can also do quick battles where you choose the map and the enemy you want to battle ( up to seven enemies). The game features great multiplayer action for up to eight people. You can also create your own maps and campaigns to use in the game. To get additional content, you can purchase the expansion pack.