You made a great foundation for a rougelike in just 10 days, congratulations! although for some reason the game crashes when breaking the ores... And the enemies spawn faster than your upgrades can handle, so after a minute I had 5 bugs destroying my machine at the same time and couldn't keep up. You could fix this with an AoE attack, for example. The aiming is very uncomfortable, too. Perhaps you could make it so that you aim with the mouse? I hope you polish this game, as it has a lot of potential.