Screenshots
Watch trailer on Steam ↗HoloDungeon: Koyori vs HollowLive in Honsha Tower
VELUX STUDIO · Published by holo Indie
Mostly Positive — 72% positive (85 reviews) · 10 achievements
Last updated 28 Sept 2026
Wonderful maze “HoloDungeon” changes form with each challenge—within it lurks Hollow, beings not unlike Holomen. To rescue her snatched friends and make special Live a success, Hakui Koyori tries an unknown adventure! Roguelike RPG where you play using wisdom and brains remain even after down.
£10.99
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Price history
Indie, RPG, Early Access · 2026 · More £5 - £15 games
Navigate the unpredictable corridors of Honsha Tower as Koyori fights to save her friends from Hollow threats, blending strategy and exploration in this unique roguelike RPG from VELUX STUDIO.
About this game
With the special live performance just around the corner, Hakui Koyori was living a hectic life, her heart filled with both uncontrollable excitement and anxiety.
Just as most of the meticulous planning was complete, the world suddenly transformed into the mysterious labyrinth known as the “HoloDungeon”.
“Oh noooooo! Help me, Koyoriii!”
“La, Lap-chan!?”
And soon after the incident began, a fellow member of the same secret society was too quick kidnapped. Can Koyori save her friends and successfully hold the special live performance...
■HoloDungeon
The HoloDungeon is a dungeon that shifts its form like a hologram.
Layers are automatically generated, ensuring no adventure is ever repeated twice. A fresh and exciting experience awaits you every time.
If you fall in the dungeon, you will lose many things gained during that adventure, such as picked-up items and experience points.
However, the knowledge gained from that adventure will surely help you on your next one.
Also, “Dungeon Experience Points” are not lost even if you fall in a dungeon, and the “Decorate Recipes” obtained by paying these points are also important keys to clearing the dungeon.
■Hollow
An existence not dissimilar to Hololive talents, yet replicated by someone being. The Hollows, each possessing diverse ability and characteristics, await the protagonist, Koyori.
However, if you can fully understand Hollow's unique character, you might be able to use that to your advantage in your strategy.
■Items and dungeon traps
Items and traps found while exploring HoloDungeon are packed with Hololive elements!
Even items or traps that seem tricky at first look may become your savior in a pinch, if utilized properly.
Of course, the reverse is also true.
■Decorate System
By using “Koyorinium” accumulated during dungeon exploration, you can blended new medicine or perform “Decorate” to dramatically enhance the performance of weapons and armor.
These effects are extremely powerful and can serve as a trump card to decisively break through seemingly deadlocked situations.
Items with weak or disadvantageous effects can also serve as important “Decorate” materials, bringing a fresh sense of strategy to dungeon exploration.
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System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS:
- Processor:
- Memory: 8 GB RAM
- Graphics:
- Storage: 3 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS:
- Processor:
- Memory: 16 GB RAM
- Graphics:
- Storage: 3 GB available space
Supported Languages
Latest news
Patch NotesOfficial
Update Announcement
We are pleased to announce that Version 1.3.1 has officially launched today!The primary focus of this update includes quality-of-life UI improvements, preemptive mechanic adjustments in preparation for future content expansions, and difficulty balancing to accompany the growing amount of overall content.Additionally, looking ahead, our development team believes that the next major content updates should be accompanied by an expansion of the main story. As we begin taking concrete steps toward the full release through this main story expansion, please note that the frequency of future updates may decrease compared to before. The goal behind this development pace is to ensure the highest possible level of quality for the full version, and we sincerely appreciate your understanding and patience.Please note that the next update will not necessarily mark the transition to the full release. We are also considering releasing smaller updates as needed, as well as potential major updates that take into account milestone pacing up to the story ending alongside new additional content.For all the detailed changes in this update, please check the patch notes below.New FeaturesAdded a DECORATE recipe view feature to the main menu. Unlocking DECORATE recipes still requires conducting experiments at the Koyorinium experimental apparatus.Added effects on Hollows for certain traps.Adjustments & ImprovementsAdded a visual indicator to the permanent UI (unlocked with the Chemical Launcher) displaying the remaining count of fireable Launcher Ammo.Added a capacity indicator for boxes to the "Inside Box" window in the Inventory menu.Adjusted trap activation mechanics: - Added a mechanic where traps activate when falling. - Changed the activation mechanic when items or objects fall onto traps. - Adjusted the physics and behavior of traps when thrown.Changed the activation mechanics and post-activation behavior of falling traps. Note: We are planning further adjustments regarding container ...Read full article on Community Announcements (ホロダンジョン開発)Patch NotesOfficial
Update Announcement
HoloDungeon Major Update Ver 1.3.0 Now Live!We are excited to announce that Version 1.3.0 has officially launched today!In this major update, titled "Blast-Disassembly! Chemical Launcher!", the core DECORATE mechanics—which are vital to conquering the dungeon—have been adapted and expanded into ranged combat, introducing an entirely new strategic dimension to the gameplay.With this fundamental overhaul to ranged strikes, the full kit and capabilities of the playable character, Koyori Hakui, are finally complete. Alongside this implementation, we have also buffed the drop rate of Koyorinium required for DECORATING, as well as increased the trigger probability of status ailments inflicted by DECORATE effects. Combined with the arrival of several brand-new Hollows, we are thrilled to finally present the true, definitive gameplay experience unique to HoloDungeon.For beginners, we have introduced a new early-game practice dungeon designed to help players step up their skills while fully enjoying the experience. Furthermore, we have added features such as the Enemy Info feature to let players easily check a Hollow's skills and traits when changing facing direction—moving away from the previous trial-and-error style where players had to learn through repeated failure. Various improvements have also been made to smoothen the learning curve, including clearer navigation toward the next dungeon players should challenge.In addition to these core features, this update brings a wide array of balance adjustments and improvements. Please check the full patch notes linked below for all the detailed changes. Thank you for your continued support of HoloDungeon!Known Issue: We have confirmed an issue where the description text for Autographs on weapons and armor obtained in versions prior to Version 1.3.0 remains displayed in Japanese, even when the language setting is set to English. We sincerely apologize for the inconvenience and plan to address this in a future update.\ Fixed an i...Read full article on Community Announcements (ホロダンジョン開発)Patch NotesOfficial
Update Details
To everyone who has been eagerly waiting: We are thrilled to announce that HoloDungeon, the traditional holo Indie roguelike, will officially feature English in-game localization starting with tomorrow's update on June 25!This English localization arrives alongside our 3rd Major Update during the ongoing Early Access period.In Version 1.3.0, the Chemical Launcher system overhauls ranged combat, expanding the mechanics to drastically elevate both the strategic depth and the sheer fun of tackling the dungeon. Simultaneously, we are introducing a new practice dungeon designed specifically for beginners, numerous support features, and high-difficulty dungeons that will push seasoned players to their limits—greatly expanding the game's overall depth.Due to the nature of the roguelike genre, HoloDungeon might not always be an easy game. However, our ultimate goal is to create an experience that brings joy to both hololive fans and roguelike enthusiasts alike. We truly hope you will continue to support the game as it evolves throughout the rest of our Early Access journey!The full details of the update can be found in the patch notes below.New Features & ContentFull English Localization is now available!Chemical Launcher System: Overhauls ranged combat by adapting and expanding the game's Decorate mechanics.New weapon Decorate effects added to the "Poe-Poe Potion".Chemical Launcher Decorate compatibility expanded to numerous "Potion" category items.Enemy Info Feature: Displays the skills and traits of the Hollow directly in front of you when changing facing direction—greatly assisting roguelike newcomers and those getting to know hololive!3 New Dungeons unlocked:"Ordnance Range""Bottomless Cavern""35P Time Cloister"6 Brand-New Hollow Families:"Kobo's Hollow" Family"Bijou's Hollow" Family"Fuwawa's Hollow" Family"Mococo's Hollow" Family"Nene's Hollow" Family"Botan's Hollow" FamilyNew Equipment & EffectsArmor: "Yukihana Petals" & "Familiar's Hat"Accessory: "Emotion Prism"Auto...Read full article on Community Announcements (ホロダンジョン開発)AnnouncementsOfficial
Notice Regarding the Retirement of Arrows
This is an announcement regarding the next update.HoloDungeon is scheduled to receive the Version 1.3.0 update next week on June 25.This update will introduce the new Chemical Launcher feature and bring a major overhaul to ranged attacks by tying them to Decorate. As part of this change, the “Shoot” command will be removed from items in the current “Arrow” category. At the same time, unless our plans change, items in the “Arrow” category will no longer be obtainable going forward.This update will not remove any arrows from players’ inventories or warehouses by editing existing save data or taking similar measures. After the update, arrows will lose their value as an attack option, but they will become legacy items that can only be obtained by players participating in Early Access at this time. If you would like to keep them, please collect them before the update. If you do not need them, we apologize for the inconvenience, but please dispose of them manually after the update, such as by selling them. There are no known issues caused by leaving “Arrow” category items in your save data.In addition to the implementation of the Chemical Launcher, Version 1.3.0 is also planned to include several requested support features, a beginner-friendly dungeon, enhanced presentation, and various other updates. We are also planning new high-difficulty content and score attack features for returning players, as well as warehouse expansion and more!For more details, please check our official X account or wait for the patch notes before the update. Thank you, as always, for your continued support of HoloDungeon!Read full article on Community Announcements (ホロダンジョン開発)Patch NotesOfficial
Update Announcement
Today, we are pleased to announce that Holo Dungeon has been updated to Version 1.2.5.Following the Version 1.2.4 update, which was released with the goals described below, this update is aimed at reducing the risk of accidental bulk selling caused by unintended input after the implementation of multi-item selection.The Version 1.2.4 update brought the series of optimization and stabilization measures introduced throughout the Ver. 1.2.X minor updates to a major milestone. While we will continue working on performance optimization going forward, we expect that the large-scale load reductions achieved through broader system revisions, as well as related issues such as the screen-edge rendering bug that had occurred as a result, were largely resolved with that update.As new features, that update also introduced several frequently requested additions, including multi-select for items and the ability to organize items inside 「保存の箱」.This update also includes several additional changes. Please see the patch notes below for full details.NewAdded a feature that allows multiple items to be selected at once when choosing items in the warehouse or placing items into a boxAdded a feature that allows players to organize the contents of 「保存の箱」Adjustments / ImprovementsChanged the map rendering process overall to improve optimization and reduce system loadRevised the processing related to reduced-resolution rendering This narrows the range of play environments where reduced resolution occurs, and in some cases may effectively result in higher-resolution rendering.Changed the warehouse menu so that switching between the “Inventory” and “Warehouse” item lists is now done with the trigger buttons (or corresponding keys), rather than the left/right keysAdjusted wall size so that parts of characters will no longer be drawn embedded in wallsChanged the text color of Hollow Lv. indicators so that it now varies according to levelAdjusted the wording and placement of key guidesVer 1.2.5: C...Read full article on Community Announcements (ホロダンジョン開発)
