Use the sliders to change the settings of the copper, press generate to start the simulation. You can use WASD to move around and you can use Q and E to zoom in and out. Be careful generating larger simulations as it can cause lots of lag. Update 1.0.1 Attempted to decrease lag and improve the rendering process along with adding a tiles mode making the copper slate look cleaner. You can also use your mouse over the copper slate to clean it.