United Kingdom, Dec. 4 -- Ubisoft's 'XDefiant' has been culled already.

The first-person shooter brought together various franchises from the 'Tom Clancy' universe and had attracted 15 million players, but due to "challenges", seemingly the recent closure of the gaming giant's San Francisco and Osaka studios, the title has been cancelled just six months after it launched.

Executive Producer Mark Rubin said: "Free-to-play games often take time to reach their potential. Unfortunately, continuing this journey became unsustainable.

"This project has been a personal passion of mine, and it's killing me to deliver this news. I want to give a shout-out to the great talent involved in making this game. Though not every challenge outcome will b...