itch.io

A lot of people have their food really low, so my tip is to make a lot of eco farms. They are cheaper then normal farms and they increase  the nature happiness.

Once, on coolmath, I got up to maybe 10 million food.

I managed to build like over 1000 eco farms on cool math and I got over 3 million food, so make a lot of farms.

There is a Mining Research Center, you can unlock it by having 15 stone mines, and 3 rock teleporters. I don't exactly know how to use it, so go on the kongregate wiki to find out.