Evil aliens are intent on taking your space station and using it to stage an attack on Earth! Use your arsenal of weapons and defenses to protect the station and stop the invasion. Set up defenses and protect the base as the aliens advance. You can repair your defenses if they’re damaged, and you can eliminate aliens if they set up their own towers, but be careful, because a nuclear strike can also hurt your own troops! Note: See below game for instructions and tips.
Instructions: Use your mouse to select and place your defenses. The invasion starts small, so you can use weaker towers starting out (they’re cheaper). Once you’ve built up a little money, you can either add more towers or upgrade the ones you have. Hover over each of the towers to see what it can do before you commit to placing it. You can also sell your towers later on if you discover that you made a mistake or just need the space for better defenses.