Wikipedia. (n.d.). List of best-selling game consoles. [online] Available at: https://en.wikipedia.org/wiki/List_of_best-selling_game_consoles#Best-selling_game_consoles [Accessed 1 December 2025]. Statista. (n.d.). Unit sales of video game consoles. [online] Available at: https://www.statista.com/statistics/1101872/unit-sales-video-game-consoles/ [Accessed 1 December 2025]. Statista. (n.d.). Video game console sales. [online] Available at: https://www.statista.com/chart/18903/video-game-console-sales/ [Accessed 1 December 2025]. IGN. (n.d.). Best selling video game consoles: Nintendo, PlayStation, PS5, Xbox. [online] Available at: https://www.ign.com/articles/best-selling-video-game-consoles-nintendo-playstation-ps5-xbox [Accessed 1 December 2025]. Nintendo Co., Ltd. (n.d.). IR Information: Sales Data – Dedicated Video Game Sales Units. [online] Available at: https://www.nintendo.co.jp/ir/en/finance/hard_soft/index.html [Accessed 1 December 2025]. Gematsu. (2022). PS5 shipments top 19.3 million; PS4 tops 117.2 million. [online] Available at: https://www.gematsu.com/2022/05/ps5-shipments-top-19-3-million-ps4-tops-117-2-million [Accessed 1 December 2025]. Sony Computer Entertainment. (n.d.). PlayStation Cumulative Production Shipments of Hardware. [online] Available at: https://www.playstation.com/en-us/corporate/about-us/ [Accessed 1 December 2025]. VGC. (2024). PS5 hits 61m as Sony's year-on-year Q1 hardware sales fall but operating income rises. [online] Available at: https://www.videogameschronicle.com/news/ps5-hits-61m-as-sonys-year-on-year-q1-hardware-sales-fall-but-operating-income-rises/ [Accessed 1 December 2025]. GamingBolt. (n.d.). Xbox Series X/S Has Sold 21 Million Units, Xbox One at 58 Million, as Per Microsoft Brazil Presentation. [online] Available at: https://gamingbolt.com/xbox-series-x-s-has-sold-21-million-units-xbox-one-at-58-million-as-per-microsoft-brazil-presentation [Accessed 1 December 2025]. PR Newswire. (2012). AtGames to Launch Atari Flashback 4 to Celebrate Atari's 40th Anniversary!. [online] Available at: https://www.prnewswire.com/news-releases/atgames-to-launch-atari-flashback-4-to-celebrate-ataris-40th-anniversary-175594321.html [Accessed 1 December 2025].