Yggdra Union's still one of my favorite turn-based strategy RPGs out there. Also, this as well as Riviera got ports onto Steam. Here's to hoping we get Knights in the Nightmare on there soon, since that's probably the most interesting Dept Heaven game. store.steampowered.com/app/2107860/...

KiTN did got a remaster, but it's only switch and mobile in japan. Technically Riviera and yggdra union was also like that so it's not too late to hope for English steam version. Otherwise, Gungnir still doesn't exists for the people (that game really is forgettable huh?)