count down on button press in blender game engine In game when I press a button on my keyboard it will start a countdown on a timer  until it hits zero. Is this something that is possible to make in blender game engine?
Yes, easily through logic bricks and using a text object.

In this example, the property start rules if the countdown is started. When Spacebar is pressed start becomes True, then the Text property gets decreased each 60 frames (that is, 1 second).

Example blend file provided below.



Example file: