All published games that come to mind need coding. It is essential to learn C-script if you are using 3DGS, and important to understand C++ either way.

Having said that, it is challenging to create an online game. It takes a lot of time and work (but that never stopped me as a new person).

For FPS tutorials, there is a big 4-part one in the Acknex Unlimited site.

For Multiplayer tutorials, the only way to go is Locoweeds (he is one of two tutorials). Can be also found on Acknex Unlimited.

Any more questions...