Halluci-Sabbat of Koishi
Released Sep 2024
Touhou Project, Komeiji Koishi's Action Game, with collision between sword and magic! Help Marisa hold a Sabbat of witches, and explore the way of treasure hunt with wisdom and strength. On the day of the war, there is the glory of death and no shame of life.
91% positive · 836 reviews
Done
All announced content has been released
Medium confidence
Done
All announced content has been released
Medium confidence
Where to buy
Steam $3.99 $7.99 −50%
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Evaluation
Halluci-Sabbat of Koishi launched its full 1.0 release on September 29, 2024, after roughly two and a half years in Early Access. At launch, the developer (ZRIGN) acknowledged that two planned bosses — Marisa and Seiga — had not been fully implemented, and explicitly promised to complete them. The developer delivered on the Marisa side: a major update on June 26, 2025 added Kirisame Marisa as a new boss along with a new ending ("Close Ending"), rounding out the core content that had been outstanding since launch.
On October 28, 2025, the developer posted a Halloween update and made a notable statement: "Afterwards, Halluci-Sabbat of Koishi will probably stop updating for a long time," explaining that development resources were shifting to their new title, Touhou Koi-Mystery. This was the clearest signal yet that active development on this game was winding down.
Following that, the developer shipped one more update on January 9, 2026 — a cross-promotion collaboration with Touhou Witch's Night Market, adding a new skill and a CG. A follow-up patch on February 23, 2026 made that collaboration skill more accessible to players. The February 23, 2026 post is the most recent developer communication, and it reaffirms that the team's primary focus has shifted to Touhou Koi-Mystery.
Both released DLC items are supporter/guide packs, and no unreleased DLC is listed on the store. The developer has not announced any further content for this game. The October 2025 statement about stopping updates, combined with the completion of the previously promised Marisa boss content and the absence of any new commitments, indicates the game's content is complete. The final meaningful content addition was the February 23, 2026 collaboration patch.
Evidence
Developer stated that after the Halloween update, Halluci-Sabbat of Koishi 'will probably stop updating for a long time' as the team shifts focus to developing their new title, Touhou Koi-Mystery.
Major update delivered the previously promised Kirisame Marisa boss and a new 'Close Ending,' fulfilling the outstanding content commitments made at the 1.0 launch.
Content
2 of 2 released · no outstanding content
Media
Details
Developer
Publisher
ZRIGN 地霊研究院
Achievements
85
Platform
Windows, Linux
Controller
full support
Steam Deck
Playable
Players
Single-player
About this game

"Halluci-Sabbat of Koishi" is a 2D horizontal scroll action game of sword war system, with fast pace and high difficulty.
In this game, you will play the Satori youkai Komeiji Koishi in Touhou Project, an adventurer.
You will help the Human Witch find the precious potion material, and make enemies with the illusory mushroom family and many undeads.

● Lots of Touhou Character
In the adventure, you will encounter various types of girls and embark on a unique story of Koishi.They are all cute~



● Instantly Stimulating Battle
In the battle, the careless party will be caught by the opponent and be attacked immediately. When you see the enemy's attack and rebound, you will feel very good.Players need to observe the enemy's actions and get familiar with the enemy's habits.
Only by defending, dodging and attacking at the right time can we defeat the enemy.
● Gorgeous Barrage Performance
BOSS will use carefully designed and gorgeous barrages to attack romance, but it poses no threat to Koishi with strong mobility!● Rich Learnable Skills
As the game progresses, players will understand all kinds of unique skills and secrets.It can not only effectively improve the combat effectiveness of players.
Provide all kinds of new methods to defeat the enemy skillfully.
And all skills have their own unique story, contains the unique cultural connotation of the Touhou Project.
It is hoped that players can get the pleasure of defeating strong enemies, the satisfaction of collecting moves, and the enrichment of seeing and hearing.


● Mysterious and Psychedelic Adventure
As you go deep into the miasma overflowing magic forest, in order to fulfill the agreement, you will lose Ego and embark on a dangerous journey.Meet enemies of different forms and styles.
Some will release high-intensity barrages;
Some will launch a pressing pursuit step by step;
Some are unfathomable magicians;
Some of them are swordsmen as quiet as water.
You may encounter companions who fight together during the adventure~
Explore the central hinterland of the deserted Gensokyo, feel the cruel law of the jungle, and confront the enemies who kill your sanity in the dark and distorted world. Use the "unconscious" ability to launch various assassination mysteries, show the skills of monsters, cut and shuttle up and down in the fierce bullet battle, and have a fierce confrontation with the enemy.

● Developer's Words
If《Halluci-Sabbat of Koishi》 is simple, it is absolutely deceptive, but it is not difficult for the sake of difficulty.The original intention of this game is to let players have a considerable sense of achievement after completing something or discovering something.
High difficulty is one of the sources of sense of achievement.
This is SekiKoi ?
The battlefield is a place where corpses are piled up.
Only by holding onto the belief that one must die can one survive.
If one wants to survive, they will die

Last evaluated Jun 22, 2026
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