In a tweet, McCulloch teased he would be announcing his next job while thanking players, employees and other supporters from working at Microsoft.
"I made so many friends, learned so much and truly had a blast!" McCulloch wrote, adding he is looking forward to sharing what's next.
During his time at Microsoft and Xbox, McCulloch started as a program manager and connected the company for partnerships with Yahoo, AT&T and France Telecom. He later dove into video games as a head producer for Microsoft Game Studios when they developed the early Forza Motorsport titles. This was also when Xbox developed their Kinect technology while he managed the portfolios behind its first bundled games.
McCulloch moved onto a managing position for more first-party game pitches and hired most of the developers for games since 2011. He also lead the software development for Microsoft's HoloLens MR headset from 2014-2017 and connected the department to Xbox. He leaves Microsoft as the former GM of its Live service for consoles.