Really cool!
The music gets a bit repetitive but the low poly style is something that I like!
I'd say that the randomness/behaviour of the "AI" makes it surprisingly easy or hard, depending on the beginning of the game!
I got level 4 first try, then got smashed lvl 5 until the one attempt where I dominated the base next to mine super quickly and that was game basically!
But really cool concept, could really see this as a quick android game.