Reverse: 1999's Cornerstone Banner Begins October 15 Alongside New Character Story
Reverse: 1999 begins the second phase of Version 3.8 on October 15 with Cornerstone's banner, a new character story, sign-in rewards, and Puppet Arena.
Version 3.8 · October 15
Reverse: 1999 — Key Takeaways
- Cornerstone banner: The Future's Foundation features six-star Cornerstone, with Diggers and Desert Flannel receiving increased summon rates.
- New character story: See You in the New World offers Clear Drops and growth materials.
- Everecho deadline: Her banner and character story end October 15 at 04:59 (UTC−5).
- More activities: The Temporal Scale II sign-in event and Puppet Arena begin October 15.
- Start time: October 15 at 6:00 a.m. Eastern Daylight Time.
- End date: Cornerstone's banner and story conclude November 5 at 04:59 (UTC−5).
The next phase of Reverse: 1999 Version 3.8, The Temporal Scale, begins October 15, 2026, bringing a new limited-time character banner featuring the six-star Mineral character Cornerstone.
The banner, titled The Future's Foundation, replaces Everecho's Speak and the Past Will Echo banner. It also increases the summon rates for five-star characters Diggers and Desert Flannel.
Alongside the banner, players will gain access to Cornerstone's character story, See You in the New World, which offers Clear Drops and character growth materials.
Both activities begin October 15 at 05:00 (UTC−5), equivalent to 6:00 a.m. Eastern Daylight Time, and are scheduled to conclude November 5 at 04:59 (UTC−5).
The changes are part of the Version 3.8 schedule published by the game's developers.
Cornerstone Headlines The Future's Foundation Banner
Cornerstone takes center stage in the second half of The Temporal Scale with a new time-limited summoning opportunity.
The official banner features the following rate-up characters:
Reverse: 1999 · Version 3.8
The Future's Foundation: Featured Characters
Cornerstone
6-Star · MineralFeatured six-star character on The Future's Foundation banner.
Diggers
5-Star · PlantOne of two five-star characters receiving increased summon rates.
Desert Flannel
5-Star · BeastThe second featured five-star character on The Future's Foundation banner.
Banner availability: October 15 – November 5, 2026. Character images are illustrative; see the official Reverse: 1999 announcements for banner artwork.
The banner runs until November 5, giving players three weeks to decide whether to spend their summoning resources.
The official Version 3.8 announcement confirms the rate-up roster and event dates but does not provide a complete breakdown of Cornerstone's combat abilities. Players looking for team-building advice should consult the in-game character details rather than assume a particular role based solely on his Mineral affiliation.
Cornerstone's See You in the New World Story Arrives October 15
Cornerstone's character story, See You in the New World, begins at the same time as his featured banner.
The limited-time story is available to players who have completed main story stage 1ST-16, Heaven Apostles.
Completing its content rewards Clear Drops and growth materials, making it relevant both to players interested in Cornerstone's narrative and those collecting resources for character progression.
The story remains available through November 5 at 04:59 (UTC−5).
Its arrival also marks the end of Everecho's character story, A Fledgling's Brave Fall, which closes one minute before Cornerstone's content begins.
Players who haven't completed Everecho's story should finish it before the October 15 rollover.
Everecho's Banner Ends as Cornerstone Takes Over
The transition also affects players still summoning for Everecho.
Speak and the Past Will Echo ends on October 15 at 04:59 (UTC−5). The outgoing banner features six-star Everecho alongside five-star Bkornblume and Dikke.
One minute later, The Future's Foundation begins with Cornerstone, Diggers, and Desert Flannel.
For players deciding between the two characters, the deadline is particularly important. Anyone intending to summon on Everecho's banner must do so before it closes.
The October 15 change is a scheduled banner rotation within Version 3.8, not the launch of a separate major game version.
Reverse: 1999 October 15 Event Schedule
Several activities begin or transition alongside Cornerstone's arrival.
| Content | Start | End |
|---|---|---|
| The Future's Foundation banner | Oct. 15, 05:00 | Nov. 5, 04:59 |
| See You in the New World | Oct. 15, 05:00 | Nov. 5, 04:59 |
| The Temporal Scale II sign-in | Oct. 15, 05:00 | Nov. 5, 04:59 |
| Puppet Arena | Oct. 15, 05:00 | Nov. 5, 04:59 |
All times are UTC−5 as listed in the official announcement. On October 15, add one hour for U.S. Eastern Daylight Time.
The second phase of The Temporal Scale sign-in event also starts October 15. Across both sign-in phases, the event offers a total of 14 Unilogs, according to the official announcement.
Players should check the individual sign-in requirements to ensure they collect the available rewards before the event ends.
Puppet Arena Opens With Additional Challenges
October 15 also brings Puppet Arena, a new friendly-match activity within Version 3.8.
The mode introduces additional types of Heartfelt Synergy and Blessing, giving players more options during its challenges.
Participation requires completion of main story stage 1ST-16, Heaven Apostles.
The event's listed rewards include Bette's garment A Life in Frames, a Crystal Casket, and growth materials.
Like Cornerstone's banner and character story, Puppet Arena remains available until November 5 at 04:59 (UTC−5).
The Temporal Scale Continues Into November
Players still progressing through the main Version 3.8 event have more time to finish its story and challenges.
The Temporal Scale story and hard modes remain available until November 2 at 04:59 (UTC−5), while its event shop stays open until November 5 at the same time.
The event rewards players with Plumb Line currency that can be exchanged for items in the event shop.
That creates two separate deadlines worth remembering: November 2 for completing the event's playable content, and November 5 for spending the associated currency.
With Cornerstone's banner, character story, and Puppet Arena all beginning October 15, Version 3.8 enters its second phase with several new activities for players to explore.
The full schedule is available through the official Reverse: 1999 Steam announcements.
