Deep Town is a fun clicker where you've got to invest resources and effort in drilling down into the crust of the earth to find all sorts of raw materials to manufacture expensive products that make you richer all the time.
The gameplay here is practically identical to that of any other player with these features. You've got a set of tools available to help you dig and dig and the idea is to make them go faster and faster while getting all you can out of these options. Clicking on the screen also gets you money and shaves minutes off your production time, so it's a good idea to develop the aspects that run on their own as well as the ones that operate via your clicks.
As you get closer to Earth's core you'll need more money or resources to keep expanding your digging operation and amassing your fortune, meaning you've got to discover enough elements to create new ones and carry on progressing