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Chaos Zero Nightmare (CZN)

Spiral Tower of Screams Explained

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NEW: Learn About the 2026 Roadmap!
S1: Forbidden Catalyst | The Great Rift
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☆ New Characters: Chizuru | Itsuku
✪ Upcoming Characters: Sereniel
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Chaos Zero Nightmare - Spiral Tower of Screams Top Banner

Spiral Tower of Screams is an upcoming 150-floor tower gauntlet Simulation gamemode in Chaos Zero Nightmare (CZN). Learn more about what Spiral Tower of Screams is and its release date here!

Rei Attention PartialAttention! This page is based on the December 20 Roadmap Showcase. We will update the page as soon as details for it is available!
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What is Spiral Tower of Screams

150 Floor Increasing Difficult Wave Battles

Chaos Zero Nightmare - Spiral Tower Wave Battles
Spiral Tower of Screams will be a new permanent gamemode inside Simulation similar to Basin of Hyperspace where you need to complete waves of increasing difficult battles as you progress higher.

Every 5 floors will be one battle consisting of 4 waves of normal enemies and 1 wave of boss enemies. This results to a total of 30 battles to complete every floor.

No Turn Limit

Chaos Zero Nightmare - Spiral Tower No Turn Limit
One major difference with Spiral Tower of Screams is that there will be no turn limit and instead the only goal is to complete all the battles however you want. This way, roles such as Vanguards, that were sidelined in other gamemodes will be a viable strategy in this gamemode.

Spiral Tower of Screams Release Date

More News on January 14, 2026

On the 2026 Roadmap Showcase premiere, the developers said that more updates about Spiral Tower of Screams will be announced on January 14, 2026 right after the first season, Forbidden Catalyst, ends. They promised that it will be released within Season 2.

Chaos Zero Nightmare (CZN) Related Guides

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Simulation Guide

Simulation Guides

Basin of Hyperspace
Dimensional Dawn Dimensional Twilight
Spiral Tower of Screams

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