Many, many thanks to suimike for his/her tip on 1948. I was thinking that mission was impossible, let alone complete it with no damage taken. Then, I used his technique. It worked like a charm!
Not to sound snobby, but this is pretty much a simplified version of Magic:The Gathering. Still, it's a good game. It's not without its balance issues, though. Building entire decks around the card "Hive Mind" is way too powerful.
When will people stop giving five-star ratings to games where features are disabled? Does it bother anyone that only half of the maps are available? Is that what you'd call a perfect game?
 "SteamBirds"){kind=icon}
 "Mytheria"){kind=icon}
 "Bloons Tower Defense 3"){kind=icon}
 "Acrony"){kind=icon}
 "Fantastic Contraption"){kind=icon}