Hello,
We are a game development studio Melior Games
We have 100% done game like Tower Defense.
It's ready for sale, please, let me know if you are interested in.
Thanks
Anastasiya
You can look for the unity3d games i have created in my portfolio.
I can sell the game source code for the runner, the car shooting game.
If you are interested i can show you other games too..
Please let me know as soon as possible.