Fire crews allowed the blaze in the dilapidated building to burn out.
There are now growing calls from locals for the building to be demolished.
The club, which was renamed The Explorer before its closure, was a popular venue in its heyday and attracted a string of star names.
It made national headlines in the early 90s when hellraising actor Oliver Reed walked into the club wearing a Doncaster Rugby Club shirt and santa hat, unfurled a huge wad of cash and told bar staff to “buy all the working class pigs a drink.”