Provided that you have at least an NVIDIA GeForce 6100 graphics card you can play the game. The minimum memory requirement for Alien Defense is 512 MB of RAM installed in your computer. If possible, make sure your have 2 GB of RAM in order to run Alien Defense to its full potential. To play Alien Defense you will need a minimum CPU equivalent to an Intel Pentium 4 2.00GHz. In terms of game file size, you will need at least 200 MB of free disk space available.
Alien Defense will run on PC system with xp and upwards.
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