The video game industry is serious business. Analysts estimate that the video game industry is going to pull in north of $100 billion in revenues in 2015.
These are the highest-grossing games of all time, using the most recently available data from the Video Game Sales Wiki and Encylopedia Gamia, and adjusted for inflation in 2015.
11. Westward Journey series (PC, 2001) — $3.9 billion
This series of online roleplaying games is unknown in the Western Hemisphere, but it's a huge hit in its native China, where developer NetEase says it has 310 million users across its three games.
10. Dungeon Fighter Online (PC, 2005) — $4 billion
This Korean online beat-em-up game never really caught on in America. But in South Korea, it's popular enough to still be played competitively.
9. Donkey Kong (Arcade/NES/Coleco, 1981) — $4.4 billion
Nintendo's Donkey Kong was Mario's first appearance (he was called Jumpman), and still one of his biggest hits.
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