It is unclear when the Xbox One Elite: Dangerous exclusivity period expires.
When asked by GameSpot on Wednesday why he chose Xbox One for the exclusive, he replied: "I think there were lots of factors - it was a hard decision. They're both great platforms."
Braben suggested that his studio's previous partnerships with Microsoft, such as with the Xbox One launch title Zoo Tycoon, gave him more reasons to partner with Microsoft.
"We've had a long relationship with Microsoft," he said.
"The Xbox audience has been very good to us. We've sold quite a few Xbox games with Microsoft. We also had a launch title for Xbox One, so our tools and technology has been battle-hardened on Xbox One already."
Elite: Dangerous shipped on PC in December, and drew a mixed response from critics. GameSpot's Elite Dangerous review summarised: "simply existing in Elite: Dangerous is enough to drive home its incredible scale," but added that "most of space is populated only by stale trading systems and fetch quests."