They Came From Planet X! online flash game is a shooting game and it's a simpler version of pc shooter games, fps or platformers. As a shooting game They Came From Planet X! requires a little bit of skill and more attention than casual games. The game is operated by mouse and keyboard, you will get more detailed instructions when you play They Came From Planet X!.

While the authors tried to keep the game family friendly, as any shooting game it does involve violence so parental supervision is advised. The game features sound effects and background music so be aware of that when you launch the game, to prevent sudden loud sounds do turn your speaker volume down before continuing

Base #4432 has been attacked by the evil Planet X Alliance!

To start playing click the "Play Now" button bellow! Enjoy!