hey, don't get any wrong ideas, I'm sure you have some of those in mind, but I'd like to suggest a bunch of units for the future to come of this game:
-explosives squad
-bigger drill
-domesticated (or robotic) mole
-laser drill
I'm more than sure some of these were already in your mind, but I just wanted to make sure. Mainly because I really like this sort of games. And with a bit of work this could become my favourite idle game, so keep up the good work done this far! I know it must be hard to balance all the new materials n' stuff, but I really hope something comes out soon enough.
I really enjoy this game, but is there a way to save the level I reached in flight even if I move to a different mode? like, I want to check how much experience I need to level up my commander, but if I go to the skills menu it will reset my level in flight menu.