This is a generic clicker game. Click the flag twice to start. You click the Earth to gain points. Each addition costs a certain amount of points, which is listed. Every time you buy an addition, your points per click will go up by an amount specific to that addition. Each addition also has a max, and if you reach it then that item will appear on the Earth. You win the game if you max out all of additions.
I got this idea from viewing other clicker games, but I did the work all on my own.