According to Final Fantasy III's Steam listing, the title will be available tomorrow, May 27th, on Steam. The title was first released for Famicom in Japan in 1990, was released in the West for Nintendo DS in 2006, and was later released on PS Store, iOS, Android and Wii's Virtual Console.
Announced earlier this month, the PC release of the third title in the Final Fantasy series will include new features. These include new and improved 3D visuals and story sequences, new visual designs for the Job Mastery Cards, Steam Trading Cards & Achievements and more.
Despite being released tomorrow, a price for Final Fantasy III has yet to be revealed. For fans of the series, Final Fantasy VII and Final Fantasy XI are also available on Steam.