GLaDOS, the menacing AI from Valve’s awesome Portal franchise, guest stars and shakes up the Defense Grid world. Players will battle not only alien hordes, but the deviousness of GLaDOS as she tests the player’s skills and changes all of the rules that you have come to know. Can you protect the cores in spite of her intrusive testing?

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10 jakefreeman

Apr 12th, 2012 0 people agree 0 people don't

its hard but fun

AnTi90d says
2 AnTi90d

Jul 22nd, 2014

No review provided

Shirk says
1 Shirk

Dec 22nd, 2012

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