Is It OK to Lie During a Game?

Here are some different examples I have been thinking about.

Bluffing Games


There are a lot of simple games of chance that one can play which require some element of bluffing.  For example, I am familiar with a game called BS where bluffing is a central element.  In these games, it is encouraged to "trick" the other players with bluffs.

Sports


There are different ways that one can misrepresent the truth in sports.

For example, in soccer, sometimes players will "flop"--that is, they fall over as if they had been fouled by an opponent.  If a referee calls a foul, the flopper's team can get a free kick or even a valuable penalty kick.

I read about another example a few weeks ago.  In college football, California played a close game with Oregon, who is number one in the country.  Oregon's style of play is to do everything they can to start each play as quickly as they can.  This has the effect of wearing down the opposition who is not used to such a fast style of play.  California employed the strategy of faking injuries.  After certain plays, a player would pretend they were injured.  The protocol when a player is injured is to stop the game and examine the player.  Faking injuries had the effect of slowing down the game enough for California players to catch their breath.  Was this worse than flopping in soccer?

Survivor


I have seen many seasons of the TV show Survivor.  Honesty is one subject that is brought up.  One school of thought is that players ought to be as honest as they would in real life.  Anything else is compromising their integrity.  Another school of thought is that it is a game like poker.  If you lie, it is OK because it is a bluffing game; it's not as if you are a dishonest person.