Well, I just looked, and:
Game: Betelgeuse
Multiple Age, max 15 players
Players so far: 15
Map: Asia Twist
Mods:
Single Age Mod, Streamers & Standards, chrispedersen version of CBM
The first one, indicates that "Single Age" was selected as a game option. The second, indicates that Single Age Mod was selected in the mod options.
In my experience, the files are in fact identical, and interchangeable (other than slight filename difference), -however- if both are selected, the game tends to not want to start, just like this.
