Sonic the Hedgehog CD (September 23, 1993), Sega CD.A remastered version was also released in 2013 for iOS and Android. Re-released in 2006 for mobile phone, in 2007 for Wii Virtual Console and Xbox Live Arcade, in 2011 for PSN and PC, in 2015 for Nintendo 3DS in the 3D Classics series, in 2020 for Nintendo Switch in the Sega Ages series, and in 2021 for Nintendo Switch Online. Sonic the Hedgehog 2 (November 21, 1992), Sega Mega Drive/Genesis.
Re-released in 2008 for Wii Virtual Console and in 2012 for Nintendo 3DS Virtual Console. Re-released in 2008 for Wii Virtual Console and in 2013 for 3DS Virtual Console.
Re-released in 2005 for mobile phone, in 2006 for Wii Virtual Console and for Game Boy Advance as Sonic the Hedgehog Genesis, in 2007 for PSN, Xbox Live Arcade, and iPod, in 2009 for iOS, in 2010 for PC, in 2013 for Nintendo 3DS in the 3D Classics series, and in 2018 for Nintendo Switch in the Sega Ages series. The list only includes games that are titled 'Sonic', with other titles such as Knuckles' Chaotix or Shadow the Hedgehog being considered part of their own series.
