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!
1 Pick Virus
2 Start in Canada, Greenland, New Zealand, or Cuba (if not, restart)
3 Sell starting symptoms (if any), other than sneezing. If you don’t have sneezing, buy it
4 Buy 1-1-1-0 Resistances
5 Once your disease spreads to a few countries, sell sneezing to get rid of visibility
6 Wait until all countries are infected. If Madagascar closes or this is after day 30, restart
7 Pump 4 Drug Resistance and buy sneezing, coughing, vomiting
8 After a few days, unlock tier 2-3 keeping whatever symptoms it gives you
9 Buy fever, fatigue, diarrhea, pulmonary edema, hypersensitivity, hemorrhaging
10 Wait until everyone die
 "Drift Runners"){kind=icon}
 "Battalion: Nemesis"){kind=icon}
 "Pandemic 2"){kind=icon}
 "Kongai"){kind=icon}
 "Hamnster"){kind=icon}
 "Save the Island"){kind=icon}
 "Crazy Flasher 4"){kind=icon}
 "Crazy Flasher 2"){kind=icon}
 "last stand 2"){kind=icon}
 "dasd game"){kind=icon}
 "Summoner Saga Chapter 1"){kind=icon}
 "Horrible Quiz 2"){kind=icon}