Wuthering Waves Back to Solaris ends November 11: check who qualifies
The Version 3.7 returnee event has specific account, server and invitation requirements.

If a friend has been away from Wuthering Waves, the Version 3.7 Back to Solaris web event is still open until November 11 at 23:59 UTC+8. That is a fixed time zone, not the daily reset time of each game server. Participants need Union Level 8 or higher.
Returning status has a cutoff. Kuro requires Union Level 8 and at least 14 consecutive days without logging in immediately before the event began, or before September 16, 2026 at 03:59 UTC+8. An eligible account keeps its returning status throughout this event. Going offline for two weeks now does not automatically qualify an account for this round.
An inviter can invite up to three returning players on the same server. A returning player may link one inviter’s code only once, and cannot change it afterwards. A returning player cannot be both the inviter and invitee of another returning player. Check the account, server and person before linking.
Invitation and in-game tasks award Fox Fortune Sticks, exchangeable for up to 480 Astrites and 300,000 Shell Credits. An eligible returning player who links a code can separately claim 50 Astrites, five Advanced Enclosure Tank III and 50,000 Shell Credits. The advertised maximum of 530 Astrites combines different reward components; what an account can actually collect depends on its status and completed tasks.
Exchanged rewards arrive in the in-game mailbox and must be claimed within 30 days. Kuro notes that task progress can be delayed: wait at least two minutes before refreshing the page or restarting the game. This is a friend-invitation web event; its invitation codes are not general in-game redemption codes.




