One of the games industry's most respected entrepreneurs has warned Microsoft that the Windows business will worsen if it tries to mimic Apple.
Gabe Newell, the co-founder of Valve who once worked in a senior role at Microsoft, is believed to be anxious that Windows 8 will undermine Steam by enforcing constraints on game updates.
For its Xbox business, Microsoft insists on screening all game updates and charges developers tens of thousands of dollars for certification. Its PC operating systems, however, freely allow updates without interference. Newell is concerned that Windows 8 will emulate the Xbox policy, prompting him to brand the new operating system "a catastrophe".
Now in an interview with the New York Times, Newell has clarified his comments further but added a grave warning.
"We would say to Microsoft, we understand all these frustrations about the challenges to your business, but trying to copy Apple will accelerate, not slow, Microsoft's decline."
Newell was also paraphrased as saying that the closed operating system approach had been a success for Apple.
Windows 8, which is earmarked for release in October, is Microsoft's attempt to mesh together an operating system that can be used on tablets, smartphones and PCs. Other games developers have criticised the move.
Rob Pardo, the executive vice president of game design at Blizzard, recently echoed Newell's comments by claiming that Windows 8 is "not awesome for Blizzard either".
In an interview with CVG, Football Manager boss Miles Jacobson said that the new iteration in the series will run on Windows 8 in Desktop Mode, but suggested that he won't be playing on this OS.
"I'm currently using Windows 7 and I'm not planning on upgrading," he said.