This is a great game! I love exponential growth games and this is one! I did spend a lot of time initially clicking and nothing was happening, so when it came to mushrooms I didn't try clicking them. But then I kept wondering about the picking mushrooms upgrade and did eventually try to pick one up and realised I could. Then I realised I had another meter which might be more spores so I placed those everywhere and it accelerated the takeover by a lot. Great game!