- Optimized high/deep-floor combat, progress, and saves; reduced slowdown, crashes, and heat - Batched large equipment/jewel drops and Battle Log entries - Added rare-jewel progress as total Lv / total cap - Uncapped eligible Heaven Reincarnation upgrades; added ×100,000 - Cthulhu sigils now activate both effect sets when equipped - Improved sigil sorting, filters, and clear UI - Improved backup errors and save/restore protection - Fixed huge-number EXP, upgrade, combat, and achievement issues

- Fixed an issue where the Moon Sigil's follow-up damage was not correctly added to total damage in the Astral World - Fixed an issue where the Hastur Sigil's effect multiplier did not increase correctly after Reincarnation Enhancement in the Astral World - Changed the floor penalty on defeat from 10 floors to 1 floor - Added “×10”, “×100”, and “ALL” options to Kill Requirement Reduction - Added a setting to turn automatic return to the Battle screen after Rebirth ON or OFF - Added “Cleared Progress”, “Uncleared Progress”, and “Sigil Slots” Rare Jewels, and increased the level cap of all Rare Jewels to Lv.10 - Improved equipment drops so rates above 100% can grant multiple items, such as 2 items at 200% and 3 items at 300% - Improved Sigil Avatars in the Abyss and Underworld so fully developed Sigils and Sigils with no remaining effect growth are less likely to be selected - Improved extremely large number formatting with alphabetic notation and multi-exponent formats such as “ee” and “eee” - Fixed various calculation, save, and display issues at extremely large values, improving stability during AUTO battles and at very high floors

- Fixed an issue where the “50%” and “ALL” options for Reincarnation Upgrades could stop working correctly with extremely large values - Fixed an issue where level-ups, remaining EXP, and stat points were not reflected correctly after gaining very large amounts of EXP - Fixed MAX behavior for Auto Stat Allocation so all remaining points are correctly assigned after the specified percentages are distributed - Fixed an issue where normal attack damage was not correctly included when using the Moon Sigil - Revised achievement progression so achievements, except world-specific floor/depth achievements, progress correctly across the Astral, Abyss, Heaven, and Underworld realms - Improved the Battle Log so it expands into the freed space when the Buff section is collapsed - Optimized AUTO battles and high-load processing to improve long-session stability, memory usage, and overall performance

- Removed the Normal Upgrade Lv cap for Special Sigils in the Celestial Realm, allowing unlimited upgrades with Celestial/Nether Sigil Fragments - Removed the Lv caps for the Reincarnation Bloom upgrades “Sigil Ascension” and “Fragment Boost” in the Celestial Realm - Changed the 22000F Sigil effect so the base amount of Reincarnation Fragments gained increases based on the number of reincarnations - Changed the 24000F Sigil effect so the Reincarnation Fragment gain multiplier increases by ×1.01 for every 100 highest floors reached in the Astral/Celestial Realm - Fixed Max HP effects from Special Sigils so applicable Reincarnation Upgrade and Hastur bonuses are correctly applied - Fixed “Sigil Resonance” in the Celestial Realm so it correctly increases Sigil equip slots instead of Accessory slots - Overhauled Sigil effect calculations and displays so equipped effects such as ATK, Max HP, and DEF are reflected correctly - Improved automatic Sigil equipping, fixed Sigil Fragment Priority, and added optimal selection that accounts for set effects such as Flower Combos - Added “Sigil Effects Summary” to the Sigil tab, showing total bonuses from equipped Sigils and currently active set effects - Stabilized the battle UI so backgrounds, text, panels, and other elements no longer shift slightly during normal battles, boss battles, or value changes

- Added new achievements - Added the new “Jewels” and “Rare Jewels” content - Added new fixed equipment effects: “Cleared,” “Frontier,” and “Sigil Slot” - Added the ability to individually reset normal upgrades for Special Sigils and refund the Sigil Fragments spent - Significantly optimized AUTO battles, boss battles, and high-floor processing to reduce stuttering, freezes, crashes, and device heat - Fixed issues involving equipment, saving, and restoration, including fixed-effect equipment becoming unable to drop again when not owned - Improved various UI elements and displays, including screen blackout mode, for better usability and stability

* Added the new “Five Element Resonance” feature, increasing ATK, EXP, and sigil fragment drop multipliers based on the lowest level among the Five Element Sigils * Changed the Five Element Sigil level cap to 1e10 and optimized processing by skipping unnecessary drop checks after reaching the cap * Expanded bulk equipment to support priority selection for all equipment options, including AUTO Speed and LvP * Added “Max HP Priority” to bulk sigil equipment * Made the “Five Sacred Beasts” section visible in Heaven and the Underworld * Fixed achievement progress so it updates correctly during battles in Heaven * Significantly optimized battle processing, including boss battles in Astral/Heaven and battles with Stay enabled, reducing FPS drops and periodic stuttering * Significantly reduced processing load during high-floor AUTO battles, long play sessions, and app startup, improving crashes and slowdowns * Improved the stability of calculations, level-ups, and required-value displays when handling extremely large values such as Five Element Sigil and Explorer levels * Improved the Five Element Sigil layout to reduce flickering and vertical movement caused by changing number lengths * Improved iCloud backup processing * Fixed an issue where some fixed-effect equipment could no longer be obtained again after resetting game data * Improved screen dimming so a fully black screen is displayed reliably * Updated descriptions and Reincarnation Upgrade conditions for Hastur and the 22000F–28000F sigils to match the specifications of each world

• Added the new Special Sigil series “Five Sacred Beasts” • Added direct numeric input to Floor Select • Significantly reduced processing load when advancing into new floors in Astral Realm, Heaven, and other worlds • Fixed Stat Point calculations when leveling up • Fixed-effect equipment that cannot level up will no longer drop again after being obtained once • Lowered the Underworld unlock requirement from Heaven 10,000F to 100F • Fixed an issue where Five Element Sigils in Astral Realm and Heaven could display or process level-ups and fragment consumption incorrectly after obtaining large amounts of fragments • Added direct numeric input for the Auto Reincarnation target floor • Fixed an issue preventing Reincarnation Leap from being upgraded correctly to the maximum Lv90 • Fully updated game guides and help for Sigils, Equipment, Worlds, Underworld, and other systems to match the current specifications • Fixed various UI, display, and gameplay issues and improved overall stability and usability

* Added the new realms “Heaven” and “Underworld” * Added “Rebirth”, the ultimate one-time reincarnation unlocked after reaching Astral Floor 100,000 * Rebalanced Heaven and Underworld with level caps and upgrade restrictions for certain Sigils to improve long-term progression * Added a “Upgrade Favorites Only” option for Rebirth Upgrades and improved related UI and behavior * Expanded sharing features and leaderboard support for Heaven and Underworld progression * Fixed various bugs and improved UI, usability, and overall stability

* Significantly optimized Astral Realm battles to reduce lag, stuttering, and device heat * Reduced unnecessary recalculations, screen updates, and background processing in both Astral Realm and Abyss, improving long-session performance * Added four display refresh options: Maximum, High, Medium, and Low * Expanded Equipment and Emblem presets from 5 to 10 slots and added custom preset names * Removed the HP recovery limit of 10× Max HP and improved overheal behavior, including the Temperance Emblem * Special Emblems that have reached their maximum effect are now displayed as Lv.MAX, preventing unnecessary upgrades * Changed Equipment Awakening bonuses so Awakening and Equipment bonuses are applied multiplicatively * Improved Equipment Option names and descriptions for greater clarity * Improved Reincarnation Fragment bulk upgrades and huge-number calculations to work correctly with extremely large values * Added a confirmation dialog before manually creating an iCloud backup, and improved the readability of the backup and restore screens * Improved iCloud backup safety by ensuring automatic backups are always disabled after app updates and on new installations

* Optimized Astral Realm battle performance to reduce lag, stuttering, and device heat. * Reduced unnecessary calculations, screen updates, and background communication during battles in both Astral and Abyss Realms. * Improved stability during extended Auto Battle and Auto Reincarnation sessions. * Added a Battle Log display toggle and reduced unnecessary log processing while hidden. * Moved the Battle Log toggle button to the upper-right corner of the Battle Log. * Automatic iCloud Backup is now OFF by default after new installations and app updates. * Fixed an issue where Automatic iCloud Backup could be unintentionally enabled after restoring backup data. * Improved the stability of individual, percentage, and ALL Reincarnation Fragment upgrades with extremely large values. * Improved the speed and stability of bulk Special Sigil Reincarnation upgrades with extremely large values. * Fixed an issue where Reincarnation Fragments could be consumed without increasing levels. * Improved support for extremely large numbers to enhance stability in high-value environments. * Fixed various bugs and improved overall stability.

* Improved number display with scientific notation as the default (switchable to alphabet notation in Settings) * Added automatic backups every 10 minutes with an ON/OFF option * Optimized AUTO and hold attack processing for smoother high-speed gameplay * Fixed an issue where battle speed slowed down in the Astral Realm * Improved automatic stat allocation * Fixed issues with Reincarnation Enhancement buttons and bulk enhancement * Improved the safety and performance of huge number calculations * Optimized huge number display, purchasing, and save processing * Improved the reliability of save and backup processing * Fixed various bugs and improved overall stability

* Added the new Equipment system * Added random equipment modifiers * Added the Equipment Awakening Level system * Added new modifiers related to Sigil Fragments, equipment, Avatars, and level-ups * Added ×1000 and ×10000 upgrade options for Special Sigil Fragments * Improved the usability of the lock and remove buttons for equipped Sigil slots * Added an in-game Guide (Help) to the Settings tab * Adjusted the effects and descriptions of the Earth, Water, Amber Cycle, and 28000F Sigils * Improved Auto Stat Allocation, Reincarnation Upgrades, and stat displays * Fixed multiple issues involving Five Elements Sigils, Reincarnation Fragments, rare enemy defeats, equipment reset, and more * Significantly optimized uncleared floor processing to reduce heat generation and improve performance * Fixed various bugs and improved overall stability

• Added the new Equipment system • Collect and optimize Rings, Charms, and Earrings with random bonuses • Added new build customization through equipment effects • Added unique equipment drops for Astral Realm and Abyss • Added equipment presets, auto-equip, and unlockable equipment slots • Added the "Coffee L + Remove Banner Ads" support purchase • Added automatic Reincarnation on defeat • Improved Reincarnation and Rebirth Blossom features • Redesigned the Equipment, Battle, and Sigil interfaces • Improved battle logs, bonus displays, backups, and other systems • Fixed various bugs and improved overall stability

• Added new Star Realm floors beyond Floor 30,000, with enemy HP and Attack increasing dramatically with each floor • Added a new realm, the Abyss, featuring unique difficulty scaling where enemies grow rapidly stronger as you descend • Added the Seven Deadly Sins series of Special Sigils from Floors 40,000 to 100,000 • Increased the base AUTO speed from 1 action per second to 2 actions per second • Increased the base press-and-hold speed from 2 actions per second to 3 actions per second • Improved horizontal scrolling, tapping, press-and-hold, and locking controls in the equipped Special Sigil list • Improved the accuracy of total playtime and current session time tracking • Improved the safety and reliability of iCloud backup and restore • Reduced duplicate calculations during battles to improve performance and stability • Fixed various issues related to displays, progression, and save data compatibility

• Added optional "Support the Developer" coffee purchases • Improved the bulk upgrade buttons for Reincarnation Upgrades and Reincarnation Bloom • Enhanced the stability of large number calculations • Improved play time tracking and adventure record accuracy • Adjusted Sigil Resonance upgrades (Lv. 40 cap) • Fixed various bugs and improved overall stability

* Expanded the dungeon to Floor 30,000 * Added new Special Sigils * Expanded the Reincarnation system * Rebalanced Reincarnation upgrades and Sigil effects * Added new Reincarnation upgrades * Improved large-number calculation stability * Rebalanced overall gameplay * Improved UI and visual presentation * Fixed various bugs

• Adjusted Justice Sigil so its effect activates when 10 or fewer stat points remain unused. • Changed Empress Sigil from an equipped effect to a passive ownership effect. • Fixed an issue where very high Five Elements Sigil levels could appear as negative values in the battle log. • Added clear descriptions showing how Cthulhu Mythos Sigil effects change depending on Stay and AUTO settings. • Fixed minor bugs.

• Added the Reincarnation system, unlocked after clearing Floor 10,000 • Reincarnation Fragments can now be used to permanently upgrade Special Sigils • After reincarnating, you can progress through the floors again and earn each boss’s first-clear reward once per run • Added category filters and detailed Reincarnation Upgrade information to the Reincarnation tab • Fixed Hastur’s effect so it correctly applies to all Special Sigils • Fixed an issue where certain Cthulhu Sigils did not correctly increase the Sigil Fragment drop rate • Fixed the Moon Sigil’s follow-up attack so it uses the same finalized damage as the original attack • Improved damage-reduction calculations and displays, with a final cap of 99.9999% • Fixed incorrect Element Sigil level and fragment-cost calculations at extremely high values • Made additional improvements to UI, save data handling, and overall stability

【Ver.3.0.0】 • Added the new Special Emblem series: Cthulhu! New abilities grow stronger based on your total defeats, play time, and total emblem levels. • Extended the dungeon to Floor 20,000! • Rebalanced late-game progression. • Improved Special Emblem effect displays to show current multipliers more clearly. • Improved various UI elements. • Fixed bugs and improved overall stability.

• Improved stability when playing on high floors and with extremely large values • Optimized large-number processing for explorer levels, stats, enemy HP, EXP, and more • Improved performance when receiving very large amounts of sigil fragments • Optimized large drop calculations from the World Sigil • Adjusted the battle screen layout so the battle log remains easier to read on smaller devices • Added the ability to show or hide explorer buffs • Added the ability to freely rename your explorer • Improved the readability of explorer names, levels, HP, EXP, and other battle information • Added unused stat points and special sigil fragments to the battle screen • Added a preview of possible Sigil Avatars to the floor selection screen • Aligned Sigil Avatar previews with their actual appearance conditions • Fixed various issues and improved overall stability

・Optimized performance during massive level-ups ・Changed auto stat allocation to batch processing for smoother gameplay ・Optimized bulk leveling for elemental sigil fragments ・Fixed large-number display issues for unused Stat P ・Changed ATK, EXP, MaxHP, and sigil fragment drop rate bonuses to multiplicative scaling ・Adjusted multiplier labels for sigils, combos, and explorer stats ・Fixed special sigil descriptions shown after first boss defeats to match their actual effects ・Changed the explorer Lv display in the Battle tab to full comma-separated numbers ・Fixed the total equip slot reward count shown at the top of the Achievements tab ・Unified Lv+1 growth descriptions in the Sigils tab ・Clarified descriptions for special sigils such as Chariot and Sun ・Removed the update history section from the Settings tab ・Removed BGM/SE ・Reviewed and improved non-Japanese text ・Improved overall display quality and stability

・Added and adjusted new Special Sigils from Floor 2300 to Floor 10000. ・Added and adjusted Flower Calendar, Star Chart, and constellation combo effects. ・Special Sigils from Floor 2300 onward now properly scale with upgrade levels and hunt levels. ・Improved Sigil Fragment drop rate display and calculation. Drop rates above 100% can now guarantee multiple drops. ・Removed opening enemy HP cut effects from Willow, Rain Four Lights, and related effects to prevent near-guaranteed kills. ・Changed some combo effects, such as Three Lights and Rain Four Lights, to fixed values for clearer behavior. ・World Sigil’s speed boost now unlocks at Lv100 or higher. ・Death Sigil is now an equipped effect instead of a passive effect, with a clearly stated 30% cap. ・Cleaned up effect descriptions and calculations for Major Arcana Sigils. ・Updated the explorer status display with clearer labels such as DMG, MaxHP, EXP, and Sigil Fragment Drop Rate. ・Changed AUTO and hold attack speed display to a clearer “times/sec” style. ・Improved battle log wording. ・Updated boss names from Floor 2300 onward to match their corresponding Special Sigils. ・Added and adjusted icons for Special Sigils from Floor 2300 to Floor 10000. ・Made the stat allocation tab scrollable and improved access to the reset button on smaller devices. ・Added “+ALL” to stat allocation, allowing all unused stat points to be assigned at once. ・Changed auto stat allocation to use a total limit based on stat points gained per level. ・Improved save handling for hidden achievements and rewards to reduce slowdown during AUTO battles. ・Improved wording in the Achievements tab, Settings tab, and adventure records. ・Added hashtags to the X sharing text. ・Added a one-time update information dialog after launching the updated version. ・Adjusted UI overlap, blackout display, and tab layout behavior. ・Other display, balance, and stability improvements.

- Unlocked deeper floors beyond 2200F. - Added new special sigil series: Flower Calendar from 2300F and Star Chart from 3500F. - Added combo effects based on equipped special sigils, including Flower Matches and Constellations. - Improved the Sigil tab with category filters and compact/detailed effect display. - Added one-tap equipment for combo builds. - Adjusted deep-floor enemy scaling, rewards, and various UI displays.

Improved localized screenshots and several in-app localization texts.

Added in-app localization, progress sharing on X, expanded iOS 16 support, improved Game Center leaderboards, and updated support information.