Fun fact- if you hover your mouse over the description of a bug or an item, such as hovering over the words "meat is delicious-all of your swarm's creatures eat it" Then you will find a funny little description or reference. One of my favorites is the "Calvin and Hobbes" reference if you hover over a bat's description.
It seems a bit strange that everyone carries a human sized (almost, anyway) gold coin, or even 2-3 coins of solid gold. And the people carry those EVERYWHERE in the world. Has that become the universal currency? Also, who is giving you all of the coin rewards when you complete the challenges? Like so the creator can see, maybe.
 "Yet another Merge Game"){kind=icon}
 "Swarm Simulator"){kind=icon}
 "Infectonator 2"){kind=icon}