I've tested it, and I love it. Now you should decide if it will became a strategy game, or an ... Adventure ? (what is MC, apart from Sandbox ?) game. Because for now the role of the character is kind of strange: it looks like its only to be the mouse of any strategy based game, but your mouse can here be killed and need "upgrades" to move faster on the map ^^. Or, you could also makes more things that requires the character: more efficient research way, "dungeons" like, where you could get some cool stff if you've defeated the creatures keeping it before, IC² like Reactor System, and maybe some interesting ore that would be harvest in less than 1 minute, very rare, making the exploration useful (for that, you could implement some "cave", that would be available once you've found the way to go in. The point of all that ? Making the game more Role Play.