The idea is interesting, but I wish the game did more with it. As it is, it’s just the starting phase of every RTS game, which isn’t all that compelling. The mines you can build don’t actually look like mines, so really the only part of this that communicates the theme at all is the text saying that the orange bar is a death bar and that the blocks are polluting mines.
I think this idea has a lot of potential, but I don’t really think it does enough with it.