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Last Updated on October 20, 2025 by Dante

Chaos Zero Nightmare is an upcoming dark sci-fi RPG from Smilegate and Super Creative, the same studio behind Epic Seven.

The game officially launches globally on October 22, 2025, with pre-registration already open for both mobile and PC players.

Here’s a full rundown of everything we know so far before release.

Release Details

• Title: Chaos Zero Nightmare
• Developer: Super Creative
• Publisher: Smilegate
• Genre: Card RPG, Roguelite
• Platforms: Android, iOS, PC
• Release Date: October 22, 2025

What Is Chaos Zero Nightmare?

Chaos Zero Nightmare (CZN) is a free-to-play card-based RPG set in a dying universe consumed by a mysterious energy called Chaos.

This black fog spreads across planets, mutating life and corrupting entire worlds. You play as a “Protos,” an elite agent aboard the SS Nightmare, humanity’s last hope for survival.

The story combines dark fantasy, psychological tension, and cosmic horror, wrapped inside a turn-based combat and roguelite structure.

Every mission takes you into unstable zones filled with corrupted enemies and moral decisions that affect your team and the world around you.

Developer and Publisher

• Developer: Super Creative (Epic Seven)
• Publisher: Smilegate
• Platforms: Android, iOS, and PC
• Release Date: October 22, 2025 (Wed) 3:00 (UTC+0), October 21, 2025 for Pre-Download
• Genre: Turn-based RPG / Deck-builder / Roguelite

Smilegate is focusing heavily on a global release, meaning the game will launch in multiple languages with servers across regions.

What is Chaos Zero Nightmare About?

The narrative begins after a cosmic disaster known as The Chaos Event. This force destroys the boundaries between matter and mind, twisting entire planets into nightmarish zones.

Players serve aboard the SS Nightmare, a research vessel sent to investigate “The Blue Pot,” a massive Chaos outbreak near Earth. As a Protos, your mission is to explore corrupted worlds, battle Chaos-born entities, and uncover the truth behind the phenomenon.

Themes of despair, hope, and mental strain define the tone. Each crew member’s psychological state changes as they encounter horror and make difficult choices during missions.

Gameplay Breakdown

Based on what I’ve seen on their official website and YouTube, here is what the gameplay looks like:

• Deck-Based Combat: Each battle revolves around tactical card play. Characters have unique cards that determine their attacks, defenses, and abilities. You must build decks that complement your strategy and adapt them between missions.
• Roguelite Progression: No two runs are the same. Each mission, known as a “loop,” resets the world’s layout and conditions. What you learn, earn, or lose affects later expeditions.
• Stress and Breakdown System: Combat and exploration increase your team’s mental stress. Push them too far, and they may suffer breakdowns that alter abilities or trigger new dialogue paths.
• Team and Partner System: You command multiple units called Combatants and Partners. Each has unique skills, lore, and synergies that shape your deck and story outcomes.

Confirmed Playable Characters

While the complete roster for Chaos Zero Nightmare has not been fully revealed, several confirmed characters have already appeared in official previews.

Here are some of the ones players will likely encounter early on:

• Priscilla: A 5-star Striker who focuses on precise, high-impact attacks. Her main ability allows her to deal heavy damage while weakening enemies.
• Scarlet: Another 5-star Striker who excels at chaining attacks. Her passive skill increases the power of her card combos, rewarding aggressive strategies.
• Solia: A 5-star Ranger who uses her ability “Spacetime Warp” to enhance extra attacks. She is best used for hit-and-run tactics and ranged support.
• Nyx: A 5-star Controller who provides strong healing and shield support. Her abilities help stabilize the team during longer battles.
• Eishlen: A 5-star Vanguard designed for frontline defense. Her skill set increases health and shield gains, and she becomes stronger when counterattacking.

These characters represent a balance of offense, defense, and utility. Each combines with a unique “Partner” in the deck system, allowing different card combinations depending on how the team is built.

First Few Story Missions

The opening missions in Chaos Zero Nightmare set the tone for its world and gameplay.

1. Prologue: The Awakening on SS Nightmare

Players begin aboard the massive research vessel SS Nightmare, drifting through the void of a universe devoured by Chaos. You are introduced to your role as a Protos, a specially trained operative tasked with investigating a phenomenon known as “The Blue Pot.” This event marks the reappearance of Chaos near Earth and sets humanity’s final mission into motion.

2. Investigation of the Blue Pot

Your first field mission takes you to the perimeter of the Chaos outbreak. The area is distorted and unstable, with creatures twisted by the infection. Here you learn how to build your combat deck, manage your squad’s mental state, and adapt to new conditions as the world shifts.

3. The First Loop

This mission introduces the core roguelite mechanic known as the Loop. Each expedition is unpredictable, with changing enemies, rewards, and psychological effects on your crew. Every choice affects future missions and determines how the story progresses.

These early chapters establish the game’s tone of isolation and survival while teaching players how to balance combat strategy and emotional endurance. They lay the groundwork for the unfolding mystery of Chaos and humanity’s desperate fight to endure it.

Visuals and Design

CZN features anime-style character art mixed with grim, sci-fi visuals. The world is filled with eerie biotechnological ruins and corrupted landscapes. Enemies have grotesque designs inspired by infection and distortion.

The art direction draws from dark anime influences and combines high-contrast lighting with futuristic HUD-style interfaces.

Pre-Registration Bonuses

Players who pre-register on Google Play, the Apple Store, or the official STOVE portal can earn several in-game rewards at launch, including:

• A 4-star character named Amir
• Exclusive launch cosmetics
• In-game resources for summoning

My Early Impressions

Based on previews, Chaos Zero Nightmare looks like a mix of Slay the Spire’s deck-building strategy and Epic Seven’s presentation. The stress system and looping story structure give it long-term replayability.

We plan to play the game at launch and write a full review once the servers go live later this month. Expect coverage on how its gameplay systems hold up and whether it delivers on its dark narrative promise.