Wow.. I had written this off after they 'canceled' it a long time ago. I.. am still in disbelief at the news, or atleast highly skeptical about the potential quality/censorship of this localized version. The Taimanin Asagi series is quite well known for its incredibly filthy smut that would push the limits of what you'd find on '/d/'. The DMM version of "TABA" is no exception; rape is/was the status quo and nearly every fetish under the sun is touched on, common squicks included.
I'm also rather surprised this is a thing because the studio that makes the franchise has a history of being very xenophobic/'legally aggressive' against localization projects. I 'assumed' this was half the reason it was 'cancelled' way back when(the other half being the actual realization of how filthy the game was).
Yes. It's actually a VERY old DMM game along the lines of Pero Pero Seduction(I could be mistaken, but I'm pretty sure PPS is a knockoff game 'inspired' by TABA).
They're actually working on a side-view battle RPG interpretation of the game/franchise right now that is all the rage right now.
-==Abridged breakdown==-
As previously mentioned, the gameplay is version similar to Pero Pero Seduction, if you've played that. You collect cards/girls, level them up and upgrade them with copies of the same cards, and build teams/decks. Different units have different abilities and they typically stack.. so it can be worthwhile to use a bunch of the same unit(instead of combining them) to increase your attack/defense multipliers.
There are stages and boss battles, the latter of which are typical cooperative 'raid' style with individual rewards and honors. Events typically consist of a 'tower' format where you're usually competing against other players for the furthest progress/most points. There is also a pvp aspect, which encourages having an offensive and defensive 'deck'.
There are three main 'factions'/unit types:
The Taimanin faction are basically modernized ninja-demon hunters. As expected, they're strong against the demon faction. They.. typically walking rape-magnets in skin-tight ninja-suits.
The America faction are basically super-militarized cybernetic warriors. They're strong against the Taimanin, but weak against demons. Most of their units are cyborgs, machines, or military commandos.
The Demon faction are.. well.. a mixture of demon/monster-girls and fantasy tropes. They're strong against USA and weak against Taimanin. Most of their units have demonic or animal features(including plants).
Fetishes: Seriously, pretty much everything you can imagine. It probably has your kink; it probably also has many that you dislike. Rape, Mind-break, Futanari, Tentacles, BDSM, Objectification, Forced Impregnation, Human(oid) Livestock, Mutation, Watersports, and Scat were all present in the original DMM version of the game. No clue how that will be handled in the localized version.