Lobby on MacOSX
From Spring
Unity Lobby
Status
Does not presently execute on OSX and suffers from several bugs. Sections of it are being rewritten and this will be put into the next release. See this thread for details.
Known Bugs
Several dependencies are outdated for OSX 10.4.8.
Endian related issues (?)
AF Lobby
Status
Does execute, but is unable to connect to the lobby server due to an update in the connection. It is reported that this will be fixed in the next release.
The AF lobby has previously been more successful on OSX but still lacks some of the features of the Unity Lobby.
Known Bugs
The aforementioned inability to connect.