Fortnite is the world's highest-earning game for the second consecutive year - MCV/DEVELOP
Battle Royales in Q2 2019 | Game World Observer
Black Friday Spurs Mobile Game Revenue to Single-Day Record of $70 Million in the U.S.
Mobile games revenue for Q3 2019: Top Grossing Games Ranking
Honor of Kings takes the lead in top grossing mobile game globally / Digital Information World
Best-selling Call of Duty games | Statista
Worldwide digital games market report for October 2019 - WholesGame
Top Mobile Games by Worldwide Revenue for January 2020
NPD predicts the best-selling games of 2019 | TechSpot
Worldwide digital games market - September 2019 - WholesGame
Mat Piscatella on Twitter: "To celebrate the latest #StateofPlay here are the PlayStation 4's top 10 best-selling games, both all games and exclusives only. Source: The NPD Group https://t.co/PFRxm3ZNWw" / Twitter
The Top Mobile Apps, Games, and Publishers of Q1 2019: Sensor Tower's Data Digest
The Sims 4 Was Is Listed As A Top Ten Best Selling PC Game Of January 2019! - Sims Online
Chart: The Biggest Free-to-Play Cash Cows of 2019 | Statista
March 2019 NPD: top 20 best-selling games in the U.S.
January 2019 NPD: top 20 best-selling games in the U.S.
Mat Piscatella on Twitter: "US NPD SW - Top 20 Best-Selling Games of Feb 2019. https://t.co/2PR2UTW2lv" / Twitter
The Top Mobile Games for January 2019: Brawl Stars Shoots Onto The Revenue Charts
Top 20 best-selling games in Germany 2019 | NeoGAF
8/10 Top Grossing F2P Games in 2020 Were Mobile vs 6/10 in 2020 - MMOs.com
Tencent tops September mobile publisher grossing chart | Pocket Gamer.biz | PGbiz
