Steel Cage – game of photo collage at Istockphoto forums, in which contestants battle against their opponents in a 5-round game. 
The players exchange a Photoshop file, containing their photo collage, and add their own elements in each round. The battles are scored by Istockphoto judges , and winners are awarded prizes up to 50 credits.
References:
Steel Cage Rules/FAQ – link to Istock forum
The Istock Steel Cage forum – link to Istock forum
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Tags: istockphoto, steel cage, Wiki
