Sonic the Hedgehog series (alternate timeline)

The Sonic the Hedgehog series is a series of video games based around Sega's mascot, Sonic the Hedgehog. It started in 1991 and is still being made and expanded now.
== Games ==
=== 2D Platformers ===
Image	Title 	Year	Notes
 	Sonic the Hedgehog 	1991	
 	Sonic the Hedgehog 2	1992	
 	Sonic CD 	1993	
 	Sonic the Hedgehog 3	1994	
 	Sonic & Knuckles 	1994	
 	Sonic Mania 	2016	A remake of Sonic the Hedgehog, Sonic the Hedgehog 2, Sonic CD, Sonic the Hedgehog 3, and Sonic & Knuckles, with 3D graphics.
 	Sonic TBA 	2017	
 	Sonic TBA 	2019	
 	Sonic TBA 	2021	
=== 3D Platformers ===
Image	Title 	Year	Notes
 	Sonic Adventure 	1998	
 	Sonic Adventure 2 	2001	
 	Sonic Heroes 	2004	
 	Sonic Adventure 3 	2007	
 	Sonic Unleashed 	2010	
 	Sonic Generations 	2013	
 	Sonic Forces 	2016	
 	Sonic TBA 	2019	
 	Sonic Mania Adventure	2021	A remake of Sonic Adventure, Sonic Adventure 2, and Sonic Adventure 3.
 	Sonic TBA 	2022	
=== Handheld Spinoffs ===
Image	Title 	Year	Notes
 	Sonic Advance 	2003	
 	Sonic Rush 	2005	
 	Sonic Rush Adventure	2007	
 	Sonic Rush 3 	2009	
 	Sonic TBA 	2011	
 	Sonic TBA 	2013	
 	Sonic TBA 	2015	
=== Other Spinoffs ===
==== Shadow the Hedgehog series ====
Image	Title 	Year	Notes
 	Shadow the Hedgehog 	2006	
 	Shadow the Hedgehog 2	2008	
 	Shadow the Hedgehog 3	2010	
==== Sonic Riders series ====
Image	Title 	Year	Notes
 	Sonic Riders 	2006	
 	Sonic Riders: Zero Gravity	2008	
 	Sonic Riders 3 	2010	
 	Team Sonic Riders 	2014	
 	Team Sonic Riders 2 	2018	
==== Sega Superstars series ====
Image	Title 	Year	Notes
 	Sega Superstars 	2008	
 	Sonic & Sega All-Stars Racing 	2010	
 	Sega Superstars 2 	2011	
 	Sonic & All-Stars Racing Transformed	2012	
 	Sega Superstars 3 	2014	
 	Sonic & All-Stars Racing 3 	2015	
 	Sega Superstars 4 	2017	
 	Sonic & All-Stars Racing 4 	2018