If you're up for some tactical browser action, go ahead and click the button below, grab a code, then enter it in the appropriate spot on the front page of the official site. After that, you should be golden. Luckily, unlike many other betas, this one doesn't make you worry about a cumbersome client download since the entire game plays in your browser. So grab yourself a key, and please, go gentle with your probing of the game. It's still in testing.