The Australian Productivity Commission reported in 1999 that there were 180,000 poker machines in Australia. It also estimated that this number amounted to 21% of all the gambling machines in the world, meaning there are approximately 860,000 machines in the world (or were in 1999).
Considering Australia’s relatively small population size, this is quite a staggering statistic. Assessing on a per capita basis, Australia has more than five times as many pokie and other gaming machines than the United States. In terms of how many kinds of slot machines out there, this is hard to give an exact answer to. We estimate that there are over 1000 different games available, and this number will just keep rising with the proliferation of online poker machines.