This is definitely the most literal growth that I've experienced in a tower defense game, so it definitely fits the prompt.
It wasn't very intuitive, though. Without reading the description, I had no idea what was going on or what to do. it would've been nice to see something guiding me in the game itself, rather than just the Itch description. I also never figured out what towers 1 and 5 did. 1 I guessed was just a basic block, which could be used to expand your machine or be a wall, but I wasn't sure, and 5 I only managed to place down one of, and wasn't able to see what it did amidst all the other chaos.
small thing grow big fun