For a while now, the higher-ups at Xbox and Microsoft have maintained that a game launching on Xbox Game Pass does not automatically mean that it will experience lower sales as a result. In fact, the opposite was claimed by Phil Spencer back in 2018, who said that a game launching on Game Pass usually leads to higher sales.
With Game Pass being as cheap as it is and games getting more expensive these days, that statement doesn't quite make sense. Why buy something for $70 when you can download it as part of a $14.99 a month subscription? Whether or not it was true at the time is another matter entirely, but Microsoft has now admitted that games that launch on the service do in fact see a decline in base game sales compared to those that don't.
Related: I Hope Game Pass Freedom Means More Single-Player Games From Arkane
In a new report (thanks gamesindustry.biz)from the UK's Competition and Markets Authority (CMA), and admission from Microsoft can be found in which it states that a game's launch on the service sees "a [redacted]% decline in base game sales twelve months following their addition." The exact percentage has been redcated in the report due to privacy reasons, so it's pretty much impossible to gauge whether it's a small or large decline, but it runs counter to the argument Spencer made in 2018 about the service boosting sales instead.
It's not a huge surprise, and the percentage probably differs a lot depending on whether the game in question is an Xbox first-party title or a smaller indie, but it does confirm that Xbox is losing out on sales when it puts its games on Game Pass. It's also something that Activison Blizzard seems wary about, as the same report reveals the publisher isn't too keen on putting
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