Marathon Race Simulator 3D: Running Game is a sports game that lets you play as a marathon runner in the streets of a city. The goal of the game is to run as far as possible. The runner can earn coins by doing various tasks, such as jumping over obstacles.

In the game, you can control the runner's movement, either by tapping the screen or tilting the device. When the player is hit, his or her runner is knocked over and the coins are lost. The player must then restart the level.

There are a number of obstacles in the game. The runner can try to jump over or around them.