Genshin Impact is an ongoing action-adventure gacha game with open-world elements. There's a ton of content in the game, ranging from the main story quests to limited-time events, house customization, and visual novel side stories, and more is added to the game every few weeks. As players complete quests, they gain EXP, raising their Adventure Ranks, which correlates to their maximum individual character levels. So as new content is added, Genshin Impact will sometimes increase the maximum Adventure Rank players can reach to give them more incentive to play.