Adaptador USB a serie, Benfei 1,8m USB a RS-232 hembra (9 pines) DB9 cable serie, chipset, Windows 10/8.1/8/7, Mac OS X 10.6 y superiores https://www.amazon.es/dp/B08B6C1XQN/ref=cm_sw_r_cp_api_i_TEMoFbCTRQJQA
Found this adaptor, hope it works. Also found that db9 connector in the motherboard of an old computer.
This might do the trick. Once you have the DB9 to USB port adapter, you should be able to map the controls to a generic joystick device on your system