I really enjoyed this game! I will say however even after reading the tutorial, I totally missed once playing how to build anything. I went back to play again after reading through everything and figured it out, but having something on the UI to click into build mode I think would go a long way to clarify and make it more discoverable.
The vines growing were great to watch and also feel like I could cut back, until the eventual doom. Might be nice to add a leaderboard or some sort of indicator of how you stacked up against other folks.