Thank you! You brought the robots down without a fight? How...? But probably you still have not found their base - it is much harder to get in. And, unfortunately, the real end is not completed yet so returning at a later time would be a good idea.
There is meant to be a lot more but I had to make weird fixes to get the enemy AI halfway up and running. This stole time for things I had planned. Watch the Update list on the game page to see the next milestones when they are ready.