Many moons ago - way back in March - we covered a Space Invaders-type game called Star Defender 3. It looks like space didn't stay safe for very long and now it needs to be defended again, because Awem Studio just released the sequel: Star Defender 4. And if you thought three was crazy - wait until you see all the action packed into four. It's nutty.

Crazy, right? Like its predecessor, this one features a full array of enemies, as well as eight full missions with boss battles, bonus power-ups to help slay your foe, new weapons, and over 100 levels. That's a lotta space to defend.

There's a free version if you want to give it a shot, but the full version will set you back a two-spot.

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