Freebies give the players the illusion that they gained something even when they are losing. Casinos manipulate players into thinking they have a real shot at winning. The machines tease players with near wins and small payouts to keep them going. Every game manipulates the player to think that a big win is possible.

Gambling in Macau has been legal since the 1850s when the Portuguese government legalised the activity in the autonomous colony. Since then, Macau has become known worldwide as the "Gambling capital of the world". It is the only place in China where casino gambling is legal.