Well, in my opinion they should make a multiplayer, I agree that might be an excuse, I've done some SIMPLE games, like 2 squares (people) playing together, which was done by Flash, and some of these stupid things, but I think that while the game no has so many things, no have much work would create a multiplayer. ANNNNNND! also not forget that with a Multiplayer they would profit greatly, and would be something that would increase the "time" of the game, because let's face it, no game is being played intensely forever, one hour will get bored of playing alone, and there will be no turning back. This is my opinion. Sorry my bad english, I hope it to understand.