In the game "footbal manager handheld" there is a option to choose called "fog of war". I can translate it word by word, but I can't understand what it means in this context. Can you please help. Are there other meanings in other contexts?

Try this site: http://en.wikipedia.org/wiki/Fog_of_war
Thx, so if I understand right, it means that not all abilities of the opponents or players are shown...?
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in football manager if you enable 'fog of war' u will unlock stuff like sugar daddy and that kind of stuff