There is Unity3D, there is SVN, there is Unity Asset Server - and there are more and more large-scale projects using Unity3D as client technology. Time to think about continuous integration and stuff like that.
Unity Asset Server Hudson Plugin
We like to present our Unity Asset Server SCM plugin for Hudson. It was developed for a commercial project yet we were allowed to contribute it to the community. It basically works like e.g. the SVN SCM plugin in terms of polling, etc. Difference is that it does not do a checkout. So you may use it as a build trigger.
If you like the idea of a tool chain including Hudson and Unity Asset Server, have a look at this:
You can install this plugin like every other Hudson plugin via the integrated plugin repository. We appreciate any feedback and hope you will find this tool helpful.