The galaxy is in danger. A surprise attack was launched and it is up to you to defend Earth. Each level has a different objective so make sure you read through the words. You will be confronted by multiple enemies and you are to dispatch them without mercy. The controls are not the easiest, but they are easy enough to get the hang of quickly. To autofire, press the 'Shift' key. To shoot, press the space bar. To do a Mega shot, hit the 'Z' button. To move around, use the arrow keys. Get out there and defend Earth, and the galaxy, in this space flight game. Defender of the Galaxy is one of our many Arcade Games that we publish on TheGamerStop.com. This game is also tagged as a Space Shooting game. Click the play button to start having fun. To play even more free games, view our popular and new games page. If you want to play more games like this, then you can simply check out the games inside the game tags that are the most relevant to your interests or the Arcade Games category or the games like this game page at the end of the game tags.