I'm sure you guys tried it already but this is my entry:

https://www.gamedev.net/projects/454-tower-defence/

Very good game.  

I tried it is pretty neat. Did you write a postmortem?

5 hours ago, h8CplusplusGuru said:

I tried it is pretty neat. Did you write a postmortem?

Yup sure is here:

https://www.gamedev.net/blogs/entry/2265037-tower-defence-post-mortem/