At the end of 2011, after attending a GameJam hosted by an online game development course I was on, a group of us decided that we would have a go at making a game together.
The game was a going to be a first person tower defence. As the only coder, I was put in charge of making things happen. I had never attempted to make a 3D game before but I was pointed to the UDK
Below are blog posts from my end of the project. There is also a link to the source code / assets I used as well a development diary I was keeping.