Hello, so I recently have bought D:OS2 when Polish localization went live but I have a problem.

I played about a year ago on splitscreen with my brother (he had game on steam) with no-name pads, everything was working fine, but now when i connect controller game instantly crashes.

Can somebody help me? QQ

A bit more Info would be nice...system spec, controller, did you change the controller...?

But...the game supports controller support, there is even a controller menu to choose the setup, if you changed the controller or reinstalled the game you should check the settings.
Otherwise you should test the controller outside the game if it works on your pc, maybe the game itself isn't the problem. good luck