Before Reporting

• I found no existing issues matching my bug
• My issue is not caused by a theme
• My issue is not caused by a plugin

Describe the Bug

When I try to play Millennium, a message appears, even though Steam itself runs on the Millennium platform and I haven't had any problems so far.

Expected Behavior

thank you for the quick reply

Steps To Reproduce

.

Operating System

Windows

Anything else?

.