I am mainly programming this on Unity 3D, which is free for users.  I am also planning on creating my models on Blender, which is also free.  The GUI will be done using the Unity 3D add-on, NGUI.  The creation of assets and the programming will be done personally by me.  If necessary due to time constraints, I’ll look for free assets on sites like blendswap.  Therefore, I believe that this project could possibly be created for free.

That being said, there may be some assets I may want to use that aren’t available for free.  I’ll therefore, set a personal budget of about $300, due to how expensive these assets can get, but I’ll avoid from doing so as much as possible.