Fun, but would like more options in-game.
I like the concept for this game, but currently it's lacking enough features to keep it interesting. Unit upgrades (IE: Making current ones slightly stronger/tougher, train faster, cost less, have special effect upon death ect.. that sort of thing) would have been great to have and keep the game interesting.
Also unit stats (hp, armor, attack, range) would have been helpful as well, especially to help coordinate attacks against certain enemy waves.
Couldn't get past level 4 unfortunately, kept getting owned when the 2 giant zombies spawned on top of each other at the same time and started one-shotting 2 of my guys at once. (Also the 3-4 back to back screechers at the beginning was a bit much.) Gold seemed to constantly be an issue, not sure if upping the max more salvage yard 1 more would help or not,
Overall, it's a good game.. would just like to see more features to give it some depth.