StarCraft Walkthrough: Zerg 1: Among the Ruins
The Zerg Mission 1 is pretty simple. They want you to get used to how Zergs build, which is by turning drones into things. Poor little drones! There they are, wandering around free in their little droney lives, and then POOF they are stuck in the ground and turned into a building. It's a rough life.
Build a few drones and overlords, then turn a drones into a spawning pool. Build a ton of zerglings (my favorite!) and hydralisks, and move right. Take out the little base to the right. Build more reinforcements if you need to. Then move north from there, and take out the main base. There's just one more building left, up a little ramp to the west, and you're done! Quick and easy.
StarCraft Walkthough Index