Gnome games missing from /usr/share/menu/

I recently noticed that all the GNOME games were missing from my autogenerated Fluxbox menu (while all the KDE games were there as expected). I eventually discovered that Fluxbox's menu is generated by the menu package, which looks for application entries in /usr/share/menu/. All the KDE games have entries in this directory, but the Gnome games do not. These entries seem, annoyingly, to be a completely separate system to the .desktop files in /usr/share/applications.

If this alternate menu specification is still being supported, could someone please add these entries to the game packages? If it has been deprecated in favour of something else, like the .desktop specification, perhaps this bug should be moved to the Fluxbox package. :/