Every single game on a casino floor is meticulously designed with a built-in mathematical advantage for the operator.

This mathematical advantage is universally known as the ‘house edge,’ and it is the secret to their massive profits.

How the House Edge is Calculated

Casinos make their money by paying out slightly less than the true mathematical probability of a win.

Take European Roulette: there are 37 numbers on the wheel, meaning your true odds of hitting a single number are 1 in 37.

• The house edge cannot be beaten in the long run by any betting system or lucky streak
• It is a statistical certainty, not a conspiracy or a rigged game
• The math is so reliable that casinos can accurately predict their quarterly profits in advance

The Flip Side of the House Edge

When discussing slot machines, the house edge is usually referred to by its inverse metric: Return to Player (RTP).

Therefore, searching for games with the highest possible RTP is the smartest way to stretch your gambling budget.

You cannot defeat the math, but by choosing games with a low edge, you can play much longer for the same price.