Please download the file: 3dNav-GameDemo01.exe and save it in a folder on your hard disk and run the file out of this folder or directly run the program from your browser (if it is supported).

At the start of the program you have to choose a language for all further questions and instructions in the questionnaire and the game. You have to answer all questions in the questionnaire to be able to step forward to the next screen by pressing the "next >>" button (located at the lower right corner of the screen).
After all questions have been answered the real game starts.

Training:
     Previous to each level a training scene is presented to try out the actual rotation technique of the level and to adjust the rotation speed to your personal needs if the rotation technique provides this. - The training can be finished by pressing the "Finish Training >>" button at the lower right border of the screen.

Play a level:
     After the training the real level starts. In each level you have to shoot off 25 targets as quick as possible. The actual score can be found on the upper right border of the screen. The level ends automatically after all 25 targets had been shoot. After each level the actual hiscore will be loaded from the internet database. (You will need a valid internet connection at this step but it is not mandatory to be able to proceed.) You can skip the hiscore screen by pressing the "next >>" button.

Assess the level:
     After each level you will be asked to assess the rotation technique used. At this juncture the levels can be identified on the basis of their different colors. Arrows of the corresponding color will help you to find the right row in the questionnaire to assess the actual level. By pressing the "next >>" button you will finish this screen and the next training for the next level will be presented until you finished all six levels.

Last but not least a text area is presented. Please feel free to add in personal remarks, what you liked or disliked, report bugs or give hints for further evaluations etc. By pressing the "next >>" button this step will be finished too.

After finishing all levels and answering all questions you will be able to send your score and the answered questionnaire to the internet database by pressing the "SEND DATA >>" button at the lower right border of the screen. A valid internet connection is mandatory for this step. Sending all the data will take maximal one or two minutes.
     If it is not possible to connect to the internet or if a send error occurs after you have pressed on the "SEND DATA >>" button, then you can try again to connect and send by pressing the "<< prev" button at the lower left screen border and then again on then "SEND DATA >>" button at the lower right screen border.
    
If it is impossible to connect to the internet or sending data will permanently fail, then you can save the data to your hard disk by pressing the "SAVE DATA >>" button at the lower right screen border after a failed send attempt. Thereupon the data will be saved in a file named "3dnav.log" which is located in the same folder as the program file you have downloaded and started before. This file attached to an email has to be send to my email address: rbade@isg.cs.uni-magdeburg.de - Thank you!

You can quit the game after you have send the data or if you had sending problems after you have saved it in a file by pressing the "EXIT" button at the lower right screen border.