Castle Defense is a cute, addictive castle defense game for Android phones.

Castle defense games are pretty popular these days, so it takes an interesting version to stand out. Castle Defense just about makes the grade, and it is one of the most popular of the genre out there.

Castle Defense is pretty traditional. Defend your castle by building towers and deploying soldiers, then sit back and watch how the battle unfolds. You get scored for each level, Angry Birds-style, and can upgrade your defenses and abilities by collecting crystals and amethysts. Of course, if you're not finding as many crystals as you'd like, you can always get your wallet out and pay for them.