List of controllers that use Game Port connectors
From PCGamingWiki, the wiki about fixing PC games
This is an in-progress automated list of PC controllers that are believed to use 15-pin Game Port connectivity sockets. The port was phased out in the late 1990's, and now require Game Port→USB adapters, PCI extension cards (No such PCIe cards are known to exist), or a very old IBM-type PC.
The Game Port's shape.
Total number of controllers: 20