Japanese mobile-social gacha-based RPGs — or “mobages” as they’re colloquially known today, after the social network many of them are hosted on — were originally described when they first appeared as “card battle” games.
Looking at Cygames’ previous title Rage of Bahamut, it’s easy to understand why. Everything about the game had the feel of a collectible card game about it, from the simplistic battle system (which primarily consisted of ensuring your numbers were bigger than the enemy’s) to the fact that the main incentive to collect all the available units (through blind draws) was to see the beautiful artwork. About the only thing missing was the ability to actually trade “cards” with other players.
In recent years, while the basic structure of these games has remained similar — draw cards, level them up, upgrade them to higher rarity versions, challenge more and more difficult content — there’s been a noticeable shift away from the “card game” feel in favour of something a lot more interesting. And Granblue Fantasy is a particularly good example of this evolution.