Perhaps the greatest legacy of CS.RIN.RU is its role as the birthplace and testing ground for Steam emulators. When a user purchases a game on Steam, the software communicates with Steam's application programming interface (API) to verify ownership. Breakthroughs shared on RIN, such as the famous Goldberg Steam Emulator, revolutionized how gamers interact with these files. By replacing a game's native steam_api.dll
Valve is aware of cs.rin.ru. Strangely, they have never aggressively pursued a shutdown. Why? Some speculate that Valve views Rin as a pressure valve for frustrated customers in regions with poor internet (who can't authenticate) or as a backup for their own servers. Others cynically note that every crack of a Steam game still requires the user to find the game files—often by buying the game first, making a backup, then refunding. cs.rin.ru forums