Microsoft has filed a trademark application for a new game called “Secrets and Treasure.”

The Xbox company filed the application with the United States Patent & Trademark Office (USPTO) on March 14. It’s listed as “game software,” but that’s all there is to go on.

We’ve reached out to Microsoft for clarification, though the company does not traditionally comment on government trademark filings such as this.

Microsoft also owns secretsandtreasure.com, having registered the page in February 2014. Right now, the URL redirects you to a Bing search page.

The company’s E3 showing this summer will focus on games, with only a few appearances from Microsoft executives, Xbox boss Phil Spencer said last week.

What does “Secrets and Treasure” sound like to you? An Xbox game…or maybe something for Windows Phones?