Ok, it's not exactly like Starcraft, but the people who made it said Starcraft did a LOT to influence it. It's called Natural Selection. There are 2 teams, Marines and the Aliens, which represent the Zerg and Terran races. There are resource places in each map where it can be captured and give each team resource to get bigger and better stuff. It captures the addictive strategy feeling from Starcraft and adds the First Person Shooter feeling of Counter-Strike for the ULTIMATE PACKAGE OF PH33R!
So please try it, you won't be disappointed. It's kind of hard to get into the game at first, but once you do, it's ADDICTING!
Link:
Natural Selection