Hey! I’m developing using a group game and I’ve noticed two somewhat serious issues: Gear cannot be added to the game’s store and Private Servers cannot be enabled.
Both of these are pretty important features for a game to have, so I would have to assume their absence from Group Games is unintentional.
I certainly agree – for Group Games to live up to their full potential, they need to have the same features that regular games do. It seems likely, however, that this is coming some time in the near future. They just probably haven’t gotten around to it yet, unfortunately.