Games considered to be mature will no longer be banned from being sold via the European Windows 8 store.
The ban was initially put into place as a result of the mismatch between European and US games rating systems.
Titles within the US are rated under the ESRB system, which typically rates titles such as Call of Duty, Skyrim and Mass Effect as 'mature' meaning anyone aged 17 or over can play them.
However in the UK, the same games are often marked with a PEGI 18 rating, which means that only those 18 and older can play them.
Microsoft had maintained a ban on adult-only content on its Windows 8 store, which prevented such titles from being tested for compatibility with the new operating system.
But the firm has since relaxed its stance on the issue, and will now allow for such games to be tested and included within the OS' store.
If held in place, the ban may have had severe consequences for the operating system, which would have effectively left a number of the latest and most-popular games from being certified for use with the new OS.
This Windows 8 testing and certification system has come under heavy fire from key figures within the games industry, including the creator of Minecraft, Markus Persson, who shared his views that the OS risked turning the PC into a closed platform.
Gabe Newell, head of games developer Valve, also had harsh words for the OS, simply labelling it as a 'catastrophe' for the PC and its developers.
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