I'm not sure if you read this, but I suggest you do. I like your game a lot, infact, I think you should make a map editor, which we can build a custom map with custom starting units and buildings. When you are finished, you would save it, and get the code of your level. You can share that with your friends, and it could be very fun. Another option could be multiplayer, where we could wait in a lobby, and join games which we want to play. There would be a more-info button too, to show you the map and layout of units. Anyway, I hope you read this. (Copy and paste if u agree) And one more suggestion from me: Something like a random-map generator, to play every match on a new map!
 "Warfare: 1917"){kind=icon}
 "Bloons Tower Defense 3"){kind=icon}
 "Swords and Sandals 3: Solo Ultratus"){kind=icon}
 "Platform Racing 2"){kind=icon}
 "Battalion: Nemesis"){kind=icon}
 "Runescape"){kind=icon}
 "Merlin's Revenge 3"){kind=icon}
 "Super Crazy Guitar Maniac Deluxe 3"){kind=icon}
 "Master of Security"){kind=icon}