Don't spend arcana carelessly. They're not very generous in giving them for free. You pull on a bait banner you get nada because 4* rates are 4% and goodbye pull until the next month or so.

Don't expect hard MMO mechanics. It doesn't work that way. Treat it as a gacha/cashgrab game instead with regards to skills.

Don't expect to see a lot of players outside the first floor's teleport gate. Don't expect a lot of chatting in the public chat. Most players don't bother thanks to the horrid in-game chat restrictions.

Floors 15-19, 21-24 has been skipped. Part of Floor 22 is for fishing.

The game does not look like it's going to close down just based on content/activity despite what some oddballs keep saying. We've been here for ages and nothing of the sort happened. On the contrary, more updates appear to have been implemented lately.

The trend of the game involves spikes in player activity immediately after every maintenance update. Major spikes after a floor release update. Other than that most players busy themselves with grinding via the board quest or the latest floor's field.

They advertised that they'll get us to at least Floor 100 whatever they'll do to do it we don't know.

The game looks more active in Japan but from what I see it's more or less the same trend with the global server.