Trka is an Augmented Reality racing game. Player competes against device with balls instead of car toys. Each ball has unique colour and number.
Four balls are involved in the game. One ball is controlled by player. Other balls are controlled by device.
Player chooses the racing track and after that choose one ball. Player can set number of laps in the game.
When everything is set, player start the game with a tap on the Start Game button.
There are 10 racing tracks and 2 modes to play the game - Rookie mode and Default mode. In Rookie mode, travel-sign arrows show the direction - Tap the travel sign to apply that direction.
In Default mode, the device is the steering wheel. The Device applies a measured angle to the ball - Tap anywhere on the screen to apply the force to the ball.
For both play modes, Force can be between 1N and 10N (Newtons). If a player applies more successive taps, a bigger force will be applied and the ball’s speed will be bigger.