I'm not sure if the fact that it's a game changes anything or not as I don't play in that space myself. But just in terms of marketing in general, some of the essentials include: The 22 Immutable Laws of Marketing - Al Ries & Jack Trout Positioning - Al Ries & Jack Trout Repositioning - Jack Trout (with Steve Rivkin) Differentiate or Die - Jack Trout (with Steve Rivkin) The Ultimate Marketing Plan - Dan S. Kennedy The Ultimate Sales Machine - Chet Holmes All Marketers Are Liars - Seth Godin The Purple Cow - Seth Godin
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