Isogenic Engine includes a powerful networking system including basic network messaging as well as more advanced client-server synchronisation technology that allows you to build realtime multiplayer games. See the documentation on the network stream.
This site has some demos hosted that you can view here. Further to the demos shown on the site you can also view loads of examples in the 1.1.0 repository.
The Isogenic Game Engine allows you to create games in both 2d and isometric and has built-in isometric depth-sorting, path-finding and even supports Box2d in isometric!