Hey, Dev. If you aren't gonna update this anymore, Give it to someone else that will. Open it to source and post a link to the download. Hell, I don't know much but if it means making this great game better, I will take it and learn Unity just to make an already AMAZING game better
you should get stuff for completing achievements. Also I think it's a very nice twist to normal tower defence games, and I especially like all the things that don't have to do with the game objective: killing sheep and goats, catching fish, freeing sasquatch etc.