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

Several Sonic Games Will Disappear From Steam, PS3, and Xbox 360

Sonic 1 recreated in Sonic Robo Blast 2

Review: Sonic CD – Destructoid

The 10 Best Sonic Games - IGN

Sega está retirando jogos clássicos de Sonic das lojas em todas as plataformas

Sonic Origins (for PC) Review

Release][N3DS] Sonic 1 & 2 (2013) Decompilation port

Best Sonic games ranked - the games to play before Sonic Superstars

Sonic The Hedgehog's Humble Birthday Blowout Bundle

Sonic Origins on Steam

Screw This Game - Sonic Origins Modder Halts Development On Massive Patch