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

USED (GD) Social Game Design: Monetization Methods and Mechanics by Tim Fields

$43.26
End Date: Monday Jun-5-2017 23:05:08 PDT
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USED (VG) The Aim of the Game: A Primer On the Use and Design of Gamed Social Si
$29.82
End Date: Thursday Jun-8-2017 11:50:19 PDT
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Mobile & Social Game Design: Monetization Methods and Mechanics by Tim Fields.
$47.40
End Date: Thursday Jun-15-2017 6:41:00 PDT
Buy It Now for only: $47.40
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