Trinity Mirror site UsVsTh3m has broken the one million monthly user barrier four months after it was launched.

The site, which features humour, entertainment news and online games, quizzes and other interactive content, attracted more than one million unique browsers in September (the publisher claims), achieving the milestone with five days to spare before the end of the month.

Trinity Mirror launched UsVsTh3m in May in an effort “to appeal to a different audience” from its newspaper sites.

Nearly half of the site’s September traffic accessed it through phones or tablet computers, according to Trinity Mirror. The site’s Twitter feed has also grown, with almost 10,000 now following it.

Trinity Mirror’s digital product director Malcolm Coles said: “UsVsTh3m only launched at the end of May. It's an amazing achievement by the team to have grown so quickly and shows the importance of experimentation for publishers.”