Find out who is playing the game at work and for how long, then deduct that time from their paycheck. If they can still complete their work, then they are being efficient and your company will save money by only paying them for the time they worked.  They can be rewarded for their efficiency by using their leftover time to either complete more work for more pay, or have unpaid time to play games. If they don't complete their work, then you can replace them with someone else who would rather get paid then play games.  I think allowing people to be responsible for themselves as much as possible is the best method for cases like this.  Otherwise, you will always be playing whack-a-mole with every new time-wasting app/game/site.  This also forces managers to pay attention to their employees, instead of relying on the I.T. police while they play games too ;-) ... View more