For anyone curious, as per the pdf they planned the development to take 12 months. According to wikipedia, they pitched Blizzard in January 1995, released the g

For anyone curious, as per the pdf they planned the development to take 12 months. According to wikipedia, they pitched Blizzard in January 1995, released the game on 31st December 1996. So that is ~24 months if they started working immediately. They probably didn't. Plus the pdf doesn't mention sales and marketing (Edit: in the schedule). Seems quite an amazing execution. Please correct any mistakes I made.