Is there an option to NOT have the game muted when tabbed out? I can't find it so i fear that i can't.

Hey there folks, I have found a bunch of things close to what I'm asking, but not quite. I have Orcs must die 3 on Epic and on Steam. I wish to play Orcs must die 3 coop with my son. He logs into epic, I log into steam. He can't invite me because when we link it it sees it as "myself" and won't allow an invite. If I break the link, then we can't see each other. Any way to make this work?...

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Does another dev team took over this franchise? I heard rumours OMD3 wasn't a succes for some reason. In any case: is the Deathtrap team diffrent from the OMD1/2/3 franchise?

Somehow i dont get the Riftlord achievment for solving the 5 levels. Do i need to play every endless varriation aswell? Or is it just bugged.