The other day I bought the game Endless Space with the addition of Disharmony, but when I started there was no sound. When I set the sound to maximum, nothing happened. And when I re-entered the game, the sound settings returned to 0, while other settings remained changed. (There is no sound in the main menu and in the game, but with a splash screen it is. I updated the driver but nothing happened.I play on a PC with Windows 10.)

I also have no sound and everything happens like you. How to solve a problem??

Can you post your error log if you have one? It would be in your game install folder in a folder with a date for a name. You game is usually installed for Windows to:

C:/Program Files (x86)/Steam/steamapps/common/Endless Space/