Atlus' Persona games have become some of the most popular Japanese RPGs in the video game industry. At one point, the series was merely a subset of the fairly niche Shin Megami Tensei franchise, but it's now far surpassed the games that gave rise to it. This is mainly due to how the games combine dungeon-crawling exploration and classic turn-based battle mechanics with elements of a social simulation.
Source:https://www.cbr.com/p4-social-link-system-friends-hangout/