According to the studio on its Facebook page, ”We just discovered that there is an issue which requires that we push back our Xbox Live arcade game release date a little. We’ve already submitted an update to Microsoft to fix the problem, and as soon as we know that the issue is fixed we’ll have a new release date. I know our fans have been waiting a long time for the game, and hopefully they’ll have the patience to wait just a little while longer. What’s mine will be yours very, very soon!”
The Steam release of Monaco is due later today, its launch unaffected.