Wuthering Waves Back to Solaris is live for Version 3.7 as a browser-based invite event where active Rovers can share an invitation code with eligible returning players. Linking a valid code gives the returning player rewards including Astrites and Advanced Enclosure Tank items, while the inviter can earn additional Astrites by bringing eligible players back and completing the event tasks.
The important thing about Wuthering Waves Back to Solaris is that it is not a normal in-game redemption-code event. You use the dedicated Kuro Games web page while logged into the correct Wuthering Waves account, generate or enter an invitation code, then let the web event synchronize eligible progress and rewards back to the game.
How to open Wuthering Waves Back to Solaris
Open the Version 3.7 Back to Solaris web event from Kuro Games’ official event link or the in-game news and event notice. Sign in with the account linked to your Wuthering Waves character, then confirm the correct region and character before creating or accepting an invitation. This matters because an invite attached to the wrong account or region will not magically transfer progress to the character you meant to use.
If you reached the event from a shared link, Wuthering Waves Back to Solaris can already have the inviter’s code embedded in the URL. Check the account details before linking it. If you are the inviter, use the event’s own Share or Invite function to generate your current Version 3.7 code instead of copying an older Back to Solaris code from a previous patch.
How invite codes work in Wuthering Waves Back to Solaris
The current event text says a returning Rover can link another player’s invitation code to receive Astrites and Advanced Enclosure Tank rewards. The inviter can then gain additional Astrites when invited Rovers return and complete the qualifying tasks shown by the event.
An invitation code is account-specific and campaign-specific. Codes posted during an older Back to Solaris run are not the safe choice for the September 30 Version 3.7 event. Use a freshly generated code from the current event page, and do not assume that someone else’s code from another region or previous campaign will be accepted.
Who can use a Wuthering Waves Back to Solaris invite code?
The event separates active inviters from eligible returning players. The live web page decides whether an account qualifies as returning, so the most reliable check is whether the page actually offers the returning-player linking flow on that account. A player who is already fully active may be able to invite others without qualifying to be somebody else’s returnee.
If a code says you are not eligible, that does not automatically mean the code is broken. Confirm you are signed into the intended account, check that the character belongs to the correct server and read the eligibility message on the web page. Returning-player status is controlled by Kuro’s event rules rather than by the person sharing the code.
Wuthering Waves Back to Solaris rewards
The current Version 3.7 invitation text explicitly advertises Astrites and Advanced Enclosure Tank rewards for a successful returning-player link, plus extra Astrites for the inviter as invited players complete tasks. The broader 3.7 event schedule also lists Shell Credits and enclosure materials among the Back to Solaris reward pool.
Do not confuse those rewards with the separate Gifts of Waking Moon login track or the normal Wuthering Waves codes. Back to Solaris uses its own web-event tasks and invitation status, while login Tides and redeem codes are claimed through different systems.
Why a Wuthering Waves Back to Solaris code may not work
Start with the simple checks: make sure the code belongs to the current Version 3.7 campaign, confirm the correct account and region, and make sure the invitee actually qualifies as a returning player. If a successful task does not appear immediately, give the web event a short time to synchronize before repeatedly unlinking accounts or creating new codes.
Also check whether the inviter has reached the event’s invitation limit or whether the invitee has already linked another eligible invitation. A returning player should not expect to cycle through multiple inviters for repeated first-link rewards. The event page will show the applicable relationship and remaining task progress.
For that reason, Wuthering Waves Back to Solaris is easiest to troubleshoot from the web event itself, where eligibility, linked-player status and remaining tasks can be checked against the account that is actually signed in.
When does Wuthering Waves Back to Solaris end?
Current Version 3.7 schedules run Back to Solaris from the update launch through November 11, 2026 at 23:59 for the web event. Use the countdown on Kuro’s current event page as the final deadline because browser events can use a different cutoff from an in-game banner or server reset.
That window covers both halves of Version 3.7, so there is time to link a returning player without treating the event as a first-day emergency. The Wuthering Waves 3.7 Banners guide covers the Hsin and Suoming phase timing if you are deciding when the extra Astrites would be most useful.
Best way to use Wuthering Waves Back to Solaris
Generate the current campaign code, share it only with someone who can genuinely use the returnee flow, and keep the event page bookmarked until the linked tasks are complete. Check the task list rather than assuming the initial link is the entire event, because inviter rewards can depend on what the returning Rover does after coming back.
Wuthering Waves Back to Solaris is therefore a useful extra Astrite source, but it is an invitation event rather than a public promo-code giveaway. Use the official current web page, verify account and region details, link an eligible returning Rover and then complete the task milestones before the November deadline.
