I enjoy playing Defend- something I don't manage to commonly do with my own projects, which makes it stand out for me. It has some flaws, however, I'll work them out over time, such as redoing the help-file, and possible edits to the interface.
I'm going to add medals and scores next, though I might wait to see if anyone finds bugs to fix in the next update.
Btw, I was first to fan it! ;)