Blizzard announces “freemium” online trading card game

HearthStone: Heroes of Warcraft is Blizzard's first "freemium" model game.

Don't like always-online consoles? #DealWithIt, 10 Years Ago This Month

Video Games Archives - Gameopedia

Mobile Gaming Archives - Gameopedia

Issue 3.9: A Tale of Two Case Studies - by Jay Rooney

Mobile Presence

hearthstone Archives - Hard Drive

Call of Duty: Mobile' game sees 100 million downloads in first week

Hearthstone: Most Up-to-Date Encyclopedia, News & Reviews

Mediatization of a card game: Magic: The Gathering, esports, and streaming - Jan Švelch, 2020

Has anyone ever created a game that you can play and earn real cash? - Quora

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Karthik Balasubramanian, Author at Gameopedia - Page 2 of 3

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PDF) Lootboxes in digital games - A gamble with consumers in need of regulation? An evaluation based on learnings from Japan