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

The Aim of the Game: A Primer On the Use and Design of Gamed Social Simulations

$12.25
End Date: Thursday May-25-2017 22:52:01 PDT
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USED (GD) Social Game Design: Monetization Methods and Mechanics by Tim Fields
$43.34
End Date: Saturday May-6-2017 23:05:08 PDT
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Mobile & Social Game Design: Monetization Methods and Mechanics by Tim Fields.
$45.59
End Date: Tuesday May-16-2017 6:41:00 PDT
Buy It Now for only: $45.59
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