StarCraft II is the successful sequel to one of the best RTS games of all time and an amazing title by its own merits. Seven years after its release, Blizzard has decided to give free access to a huge part of the StarCraft II campaign, both in single player and various multiplayer modes.

Wings of Liberty, the StarCraft campaign starring humans, is completely free. Play it from beginning to end, plunging into the the game's backstory, and of course, measuring your strategy skills against artificial intelligence. You can also play in Versus mode, against both AI opponents and other human players over the internet, and this playing mode allows you to use other races and generals.

Like almost all Blizzard games, you must first install Battle.net to enjoy StarCraft II. And that is exactly what this download provides: direct assess to battle.net, from which you can easily download this 30GB game.