I have to create a web application, preferably I would host that on Google App Engine. it is a multiplayer game, So it needs to be interactive. I am only familiar with C/C++ coding, and have started learning python. I have made multiplayer games before too(multi-player and single player) but with no GUI.
So please show me the light! I have absolutely no clue about where to start! Please tell me where to begin, and what all to read up which can quickly give me some insight into development work! How to go about the GUI.
And what all possible language combinations can I use? The easier to use, the better.