Starcraft is rated 13+ Teens.

It features foul language, alchool and tobaco, and you can and must hurt and kill people ( including civilians ) with guns, blades, bombs, fire, nukes, electricity to progress in the game. Make them explode in a bloody pulp from catastrophic parasitic infestation or being impaled by hidden spikes.

You can have abomination aliens infest them to mutate their bodies in grotesque ways and destroy their mind. Turn them into mind-controled explosive drones. Mind-fuck them into submitting to you and turn against their own kind.

And it's up to the parents to decide if this is appropriate for their children, and set parental controls on the computer.

Age ratings are a fucking joke.