Sonic 1 Steam ROM + Sonic 2 Steam ROM + Sonic CD 2011 + Sonic 3

Since Sega decided to delist all versions of Sonic 1, 2, CD, 3 and Sonic & Knuckles from every digital store because of the upcoming release of Sonic

Best Sonic games ranked: every Sonic the Hedgehog game ranked from best to worst - Video Games on Sports Illustrated

Sonic CD Restored - 30th Anniversary Edition [Sonic CD (2011)] [Mods]

Sonic Origins (for PC) Review

Sonic CD (2012) - PCGamingWiki PCGW - bugs, fixes, crashes, mods, guides and improvements for every PC game

Sonic Origins Will Include Classic Games Like Sonic CD - Siliconera

Sonic Mania - Wikipedia

Sonic the Hedgehog 2, Sonic Wiki Zone

Sonic 1 & 2 Mobile Versions Ported to PC

Sonic Origins Review – Half-Baked Hedgehog Rehash

Sonic 1 recreated in Sonic Robo Blast 2

Sonic 1 Steam ROM + Sonic 2 Steam ROM + Sonic CD 2011 + Sonic 3 & Knuckles Steam ROM : SEGA : Free Download, Borrow, and Streaming : Internet Archive

Sonic Origins Spin Dashes To The Latest Platforms Next Year

Sonic CD Restored - 30th Anniversary Edition [Sonic CD (2011)] [Mods]

Sonic CD's Japanese Soundtrack Fuels Style and Substance, by Brandon Johnson, SUPERJUMP