A free program for Android, by X Gamerz.
Mud Truck Simulator is an arcade-style driving game that puts you behind the wheel of a mud truck in the midst of an off-road adventure. The objective of the game is to drive from one point to another as quickly and as efficiently as possible.
The gameplay is simple: You will need to make sure that you have enough gas to get to the next checkpoint, that you are able to maintain a speed of more than 50 miles per hour, and that you can navigate the various obstacles that you will come across. The gameplay is divided into different chapters, each of which contains a number of levels.
There is a lot of variety to the game: You will need to drive through mud, through dirt, and over streams. You will need to get your truck to the next checkpoint as quickly as possible.