I dont know if the developer sees bug reports on GOG at all, but I'll report anyway. I had screensaver configured in Windows 10, and played the game with a controller. During the game Windows thinks that there is no input and starts the screensaver. Disabling the screensaver is an easy workaround, but this shouldn't happen in any case. Game version is 0.6.7.

That's because Windows thinks your PC is idle if you're not using your keyboard or mouse.

So basically you should write about the issue to Microsoft. I'm sure it will only taken them years until a real human reads your mail - judging from the amount of complaints they must have gotten about the spyware in Windows 10...

Maybe you can find a free third party patch to fix the issue in the meantime so you won't have to remember to turn off your screensaver every time you want to play a game with a controller.