Game Developer (formerly Gamasutra)
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The business section of Game Developer, successor to Gamasutra, publishing industry analysis and practitioner postmortems on pricing, storefronts, live-service revenue, and studio economics. Gives you concrete cases rather than general advice about making games pay.
More resources on Monetization Strategies
Smart Passive Income
Pat Flynn's business-building site, built around a long-running podcast, written guides and free mini-courses on audience building, email lists and monetisation including affiliate income. Substantial free material sits alongside promotion of a paid membership.
PocketGamer.biz
Trade publication covering the mobile games business, with reporting on in-app purchase design, ad monetization, user acquisition costs, and store policy changes. Reading it regularly keeps you current on what monetization models actually earn.
Deconstructor of Fun
Industry site publishing teardowns of free-to-play mobile and PC games, covering monetization design, live-ops, retention and market deals. Readers come away able to analyze how a game's economy, pricing and progression systems generate revenue.
Esports Business Management
Human Kinetics textbook covering the esports industry as a business: league and team structures, sponsorship, broadcasting, event operations, marketing, law and finance. Students finish able to describe how esports organizations are structured, staffed and funded.
esportsinsider.com
Esports Insider is a business-focused publication covering the esports industry, including news on deals, sponsorships, media rights, and market trends. It provides interviews, analyses, and case studies on monetization strategies and revenue opportunities for teams, brands, and platforms.