The provided article text consists only of PC Gamer's website navigation, membership promotions and boilerplate content, with no actual article body available. Based on the headline, the piece appears to report that Ubisoft is granting free PC access to 13 games for players who already own them on Xbox, though the specific titles and details of the offer are not included in the retrieved text.

No further details, terms, eligibility criteria or timeframes for the offer could be confirmed, as the substantive article content was not present in the source material provided.