A free app for Android, by Jansen Games.
Farming 3D: Liquid Manure is a game that brings you into the real world of farming. You are a farmer, and you are going to pick up a new farming technique. The game is all about driving a tractor and a trailer and collecting manure in the process. You have to drive the tractor and the trailer to a specific location, and then you have to open the trailer to get the manure.
The game is all about how to control the tractor and the trailer, and how to maneuver them in the best way possible. You can use the farming techniques that you learn in the game to help you in the real world.