Although illegal, online gambling through sites other than legal operator Singapore Pools continues to be a pastime for many. Not only do these sites offer convenience, but they also boast a repertoire of games, which may not be available at legal gambling operators.

Singaporeans and Permanent Residents of Singapore (the "Residents") must have a valid entry levy to enter the casino premises. Person eligible to enter casino premises must be 21 years old or above.

The primary cancer risk factor for casino workers is thought to be due to second hand smoke which can increase the risk of both lung cancer and breast cancer (42% higher) compared to the general population's risk. Second hand smoke contains 700 chemicals that are known to cause cancer.

Gambling is a major sin which Allah has forbidden in His Book, and He mentions the prohibition on it alongside the prohibition of alcohol. Allah says (interpretation of the meaning):