My question is about the morality of actions in games. Can our behaviors in a game - however friendly or cruel if they are inside the borders of the game's rules - be regarded as immoral acts? For example, is hitting a person during a game a sort of immoral act? (in this case I know that it might be punished by the referee but is the act in itself immoral?) What about deceiving your rival in a game? Is it lie and thus an immoral behavior? and killing (suppose there is a game in which two people agree on a fight which would end in one side's death)?