This one can be gotten right at the beginning of the game while in the bar. Just go up to the Runeman machine and start playing it.
Runeman plays exactly like Pac-man, very simple
You will need to score 15,000 not to tough but might take a few tries.
Note: The other two "games" found at the beginning of the game (and also have achievements) can be found later in the game while traversing the spaceship. Runeman is the exception to this, it is only found at the very beginning of the game at the bar.
Here are the other 2 achievements you can get along with this: