January 21 Patch Update
NEW: January 14 Patch Notes
┗ Learn About the 2026 Roadmap!
★ New Characters: Narja | Gaya
☆ See our Endgame Mode Tier List
★ Tier Lists: Character | Partner | Cards
☆ Season 2 Upcoming Content
This is a patch summary list for the changes coming on January 21's patch for Chaos Zero Nightmare (CZN). Read on to view a summary of the livestream including Narja's info, additional features, new events, and other quality of life and game changes.
| New Content and Updates | |
|---|---|
| All Patch Notes and Updates | January 21 Patch Notes |
January 21 Patch Notes and Content Changes
Updates to Spiral Tower of Screams
An update to the current Spiral Tower will be added at the completion of the patch update. The current 50 floor limit will have a new set of 25 floors to tackle for a total of 75 floors. The weekly entry limit will also be removed.
New Codex Event - Back to the Codex
| Event Duration Countdown |
|---|
A new event called Back to the Codex will be added to the game. The event lets you obtain rewards from progression milestones.
Back to the Codex Rewards
| Codex Level | Reward |
|---|---|
| 80 |
 Rescue Anchor
x2 |
| 95 |
 Signal Amplification Anchor
x2 |
| 110 |
 Prism Lens
x3 |
| 130 |
 Traces of Memory
x50 |
Quality of Life Changes
| Improvements |
|---|
|
Codex will no longer be lost when exiting or being defeated after entering through Codex > Waypoint. ・A confirmation popup will be displayed when merging Codices at Level 81 or higher. ・Clearing a higher difficulty in Codex Record will automatically complete the lower difficulties. |
| Error Fixes |
・An issue where an error message appears if [Next Difficulty Level] is selected in Simulation – Challenge when there is insufficient Aether. ・An issue where text is not displayed correctly in Help > Aboard The Ark > Spiral Tower of Screams. ・An issue where Epiphany Card description text is incorrectly displayed for Amir > Full Metal Hurricane. ・An issue where Epiphany Card description text is incorrectly displayed for Kayron > Black Hole. |
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