This is the real reason to buy the Steam ROM. The community-decompilation project, Sonic 3 Angel Island Revisited (S3AIR), requires the Steam ROM file to run.
The official Steam version of was delisted from the store on May 20, 2022. However, if you already own the SEGA Mega Drive and Genesis Classics collection and purchased the game before its removal, you can still access the ROM file for use in fan projects like Sonic 3 A.I.R. . Finding the ROM on Steam sonic 3 & knuckles steam rom
Which of those would you like? If you want a step-by-step setup for legal ownership/emulation, I’ll assume you own an original cartridge and provide a prescriptive guide. This is the real reason to buy the Steam ROM
from the Steam Store. SEGA removed the individual "Sega Classics" versions of the classic Sonic titles shortly before the release of Sonic Origins Plus If you already own it: However, if you already own the SEGA Mega