Thought that with the game being released today for iOS and Android that I'd make a thread for it, since there apparently isn't one in existence.
Danmemo Website
It's an RPG based on the story of the original Danmachi (although at some later point they'll apparently also add Sword Oratoria) that's fully voiced with an own theme song, again sung by Iguchi Yuka and a few animated cutscenes (don't know if these are newly animated by JC Staff or simply re-used from the anime). Being a mobile game, it of course is using a gacha and in-game payments. Oh, until until Wednesday I think they are running a starter dash package that includes a special ticket with which you can choose a 4-star of your choice for 400 paid crystals.
Played it for two hours just now and it seems pretty stable after being somewhat slow in the menus while it was downloading all kinds of stuff at the start. (On the other hand, I'm running it on a Nvidia Shield K1, so I don't know how representative that is).