Who invented the game Monopoly?

Charles darrow made monopoly.

Charles Darrow merely adapted Monopoly and then fraudulently patented it as his own invention, having learnt it from Quaker friends. A game called The Landlord's Game was patented by Lizzie Magie in 1903, patent no.748,626, this was later renewed in 1924 with patent no. 1,509,312. This patent no. can be seen on early Parker Brothers' Monopoly sets, the rights having been bought from Magie for a mere $500, yet Darrow became a millionaire.