Is there are tutorial for Tower Defence games? If there is, can you give me a link?
I would just generally learn how to script and use Unity. Once you have a bit of experience it should be straight-forward to make a tower defence game.
Good general learning material at http://unity3dstudent.com/
Ok. I can just say that, I’m beginner scripter. What would be the best scripting language for tower defence? C# or maybe Javascript?