Overview
Infinite Vortex is a branching story system within the quest system of Honkai: Nexus Anima. It was part of the Nexus Bond Test (first beta), and the post-beta DevTalk describes it as story content in which the player's choices steer the narrative toward divergent endings.
Branching Choices
Infinite Vortex presents players with story choices at key junctures. According to the development team's post-beta plans, choices made in different Infinite Vortices will influence one another, different choices will steer the story toward divergent endings, and the key decisions that affect narrative progression will be highlighted more clearly. The branching structure gives the system replay value beyond a single playthrough.
Divergent Endings
An Infinite Vortex story can reach different endings depending on the choices made along the way, which encourages players to try different decision paths rather than a single route.
Replayable Checkpoints
The development team plans to unlock checkpoints once an Infinite Vortex has been cleared, so players can replay the story from specific points instead of starting over and can explore branches they did not take the first time.
Post-Beta Changes
The post-beta DevTalk listed Infinite Vortex first among its planned quest improvements: choices that influence one another across Vortices, clearer highlighting of key story decisions, and replay checkpoints after clearing. In the same section the team said incomplete quests such as Endless Challenger would be reworked to full release standards, and that new storylines for the Nexus Association and Nexus Syndicate would debut in future updates. It did not tie those faction storylines to Infinite Vortex.