Smilegate has released a new Chaos Zero Nightmare update, introducing playable Combatant Blazebell, Partner Vivian, and a major overhaul of The Great Rift’s boss battles. Released on November 11, 2026, the update also expands Galactic Disaster Season 5 with a second story chapter, new progression features, and limited-time events for the PC and mobile roguelike RPG developed by Super Creative.
The changes were detailed in the game’s official November 11 update notice. Alongside the new characters and story content, the update separates The Great Rift into noncompetitive and ranked battle types, introduces additional boss strategy tools, and addresses performance issues affecting longer encounters.
Galactic Disaster Season 5 continues with Chapter 2, titled “Flames Rising Over a Snowfield,” which expands the storyline of “A Promise Upon the Snow.” The chapter follows the Captain’s activities within the Celestial Bulwark on the frozen planet Nivalis, where Blazebell, the head of House Freyja, becomes central to the unfolding conflict. Players must complete Season 5 Chapter 1, Episode 12, “Starting as Friends,” to unlock the new story.
Blazebell joins the playable roster as a Justice-attribute Controller whose abilities focus on generating resources and supporting allied attacks. Her combat mechanics revolve around Bind, Blue Flame, and the Melting debuff, allowing her to improve damage output while creating opportunities for other Combatants.
Her abilities include Fluttering Embers, which supports card generation and resource management, and the Ego Skill Hellfire, which deals Defense-based damage to all enemies while applying Melting. Hellfire also creates four Blue Flame cards after discarding eligible cards from the player’s hand.
Melting increases the damage enemies receive from Justice-attribute cards by 15% for one turn. Repeated Justice attacks can additionally trigger Hypermelting, increasing damage received for a further temporary effect.
Blazebell’s Ego Manifestation upgrades provide additional benefits, including increased critical chance for Justice Combatants, stronger allied attacks, and enhanced damage through Freyja’s Authority. These mechanics position her as a support-oriented character whose effectiveness depends on coordinating card usage and allied abilities.
The update also introduces Vivian as a new Partner. Vivian provides defensive support to her assigned Combatant and can improve damage and critical chance for Justice-attribute allies through interactions involving Bind. Her addition gives players another option when constructing teams around Justice damage and resource-based combat strategies.
Both characters became available through separate rate-up Rescue banners following the November 11 maintenance. Their featured banners are scheduled to remain available until maintenance on December 2, 2026. Blazebell will subsequently enter the Normal Combatant Rescue pool, while Vivian will be added to the Normal Partner Rescue pool when the next Partner Rate-Up begins.
The Great Rift has received one of the update’s most substantial changes. Its previous Easy, Normal, Hard, and Hell difficulty categories have been replaced by Subjugation Battle and Merit Battle, separating boss practice and progression from ranked competition.
Subjugation Battle allows players to fight Vanguard and Rearguard bosses without affecting competitive rankings. Scores receive grades ranging from B to SSS, while Recommended Formations help players select suitable teams. There are also no restrictions on Save Data usage, allowing greater freedom to experiment with different builds.
Merit Battle unlocks after players defeat the Rearguard boss in Subjugation Battle. This mode retains competitive rankings, with rewards distributed according to players’ final placements.
In Merit Battle, the Vanguard boss can be defeated normally, while the Rearguard boss has infinite HP and encounters conclude once the allotted turns are exhausted. Rearguard attempts also restrict players to current-season and Basic Save Data.
The revised structure gives players a dedicated environment for testing strategies before entering ranked battles. New Boss Strategy information further supports preparation by explaining encounter mechanics and helping players identify appropriate approaches to difficult fights.
The Great Rift’s first half runs from November 11 until the December 2 maintenance, followed by a second half scheduled through December 23.
Beyond the new battle formats, the update introduces Memory Fragment Sub Option Selective Crafting and Readjustment features, providing additional control over character equipment progression. Divine Epiphany Removal has also been added, alongside other adjustments affecting character builds and combat mechanics.
A new Battle Speed feature allows encounters to progress faster, while changes to Command Delegation improve interactions with certain boss mechanics. The developers have also addressed an issue that caused increasingly long freezes during extended battles as players used cards and ended turns.
PC-specific optimizations target several-second freezes when switching chapters, changing difficulty settings, or navigating back through Battle Missions and Story menus. Additional fixes address window sizing and resolution behavior on smaller monitors.
The update introduces further customization improvements for Save Data and player ID Cards. Sticker and background collections now feature revised categories, search and filtering tools, and Favorites functionality. Players can also adjust sticker opacity, lock their placement, and change their layering.
Seasonal rewards have expanded through the second Celestial Bulwark Supply Store, which accepts Relics of a Frozen Civilization earned through seasonal content. Available rewards include an Omega Code and time-limited progression materials such as Cores of the Reverse, Annihilation, and Potential.
A new event, “Flame That Illuminates Memories,” explores Blazebell’s past and her connection to House Freyja. Running from November 11 until December 2, the event becomes available at Captain Level 35 and features story sequences, missions, and Memory Illumination activities.
Players progress through memories by revealing hidden elements within a ruined mindscape, with additional stages involving battles alongside Blazebell. Completing objectives provides rewards including Crystals and character growth materials.
The existing Nightmare Dream Park event has also expanded with a new management minigame, “Rules of Good Order.” Players guide Looty through problems affecting the amusement park, complete stages to earn stars, and obtain materials used to upgrade management tools.
A Virtual Tactical Simulation event additionally lets players test Blazebell using predetermined Save Data before deciding whether to pursue her through the Rescue system. Her trial remains available until December 2, while a separate Rita trial is scheduled to begin on November 24.
Chaos Zero Nightmare is available on PC through STOVE and on iOS and Android. The November 11 update is live, with its new story content, character banners, Great Rift changes, and seasonal activities accessible according to their respective unlock requirements and event schedules.
