Glorantha is a bronze-age fantasy world originally “discovered” by Greg Stafford. It has since been vastly expanded by many other talented authors. It has been featured in board games, role-playing games, and video games. It has been explored in several miscellaneous books.
You can find a list of Gloranthan role-playing games on RPGGeek. The main ones are:
You can also find a list of Gloranthan board games on BoardGameGeek. The main ones are: