social game design eBay auctions you should keep an eye on:

Mobile and Social Game Design : Monetization Methods and Mechanics, Second...

$40.18
End Date: Friday Mar-31-2017 10:43:29 PDT
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The Aim of the Game: A Primer On the Use and Design of Gamed Social Simulations
$12.49
End Date: Sunday Mar-26-2017 22:52:01 PDT
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Mobile & Social Game Design: Monetization Methods and Mechanics by Tim Fields
$40.44
End Date: Saturday Apr-15-2017 12:00:29 PDT
Buy It Now for only: $40.44
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