Hello devs, im buying all arts but didn`t use it. Can u help?

but in the description it says Co-op mode through Remote Play Together Steam feature So is it not really online and just a remote play thing?

Hi. Finished the story yesterday. Killed final boss (already 3 times in a row), fully upgraded my village but still don't get one achievment Lullaby (Witnessed the end of the story). I saw the same I should get for the MasterMode. Is it bug and I should get it with after killing Glory or there are some content anywhere I didn't find yet? I have only 5 acts. Have already finished 5th act maybe 7-8 times in a row. Nothing changed. Thank you. P.S. Also saw some bugs and have noticed some issues. I think I'l...

3 hours in, beat the game with all 4 char, now I just need to grind the difficulty.. is that it?

https://gtm.steamproxy.vip/sharedfiles/filedetails/?id=3331963160 I am not sure what is happening. This screen shows up when I start the game. i have tried re verification of files, re installation. This is only happening in the full game. I played the demo after this and the demo works well....