
Thousands of fairies and familiar faces are swarming the Scarlet Devil Mansion Library! Help Patchouli Knowledge survive by attacking back with bullet hell Spell Cards, gathering experience, and upgrading exponentially!
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0/day in the week to Sep 8 → 0.43/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,402 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Genres
Engagement
Reviews
Themes across 49 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Very fun, you create a build by placing spell cards and modifiers on a hex grid and fight generic fairies and bosses, mostly EoSD with their adapted signature spell cards. The health system is life-based like it should be and you autocollect after boss fights. Feels like the ideal game of this type, it's hard to imagine what could be improved.
action roguelike based on EoSD theme stages difficulty feels just right, spellcard and power up using inventory management system somehow really fun, and using life points instead of traditional health bar imo is the right choice for this game and Marisa somehow feels like very Marisa
Media

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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, Japanese
Hours played at review time, across 49 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
帕琪用完能量在那大口喘气的样子属实可爱, 这游戏本身还是吸血鬼幸存者那类型的,但要想全成就一看就要刷很久。
this makes me feel like patchouli the way i be having suprise asthma attacks
fills the ♥♥♥♥-space-invaders-clone-on-the-inflight-entertainment-system shaped hole in my ♥♥♥♥-space-invaders-clone-on-the-inflight-entertainment-system shaped heart
me when the survivors are in the touhou library
mukyu
Solid little game. Not a massive amount of replayability relative to other games in the genera (for a few reasons, like less weapon variety), but it's good. Also, it does have more 'bullet hell' than 'bullet heaven' in it, but that's not a surprise given the source material. I'd recommend it.
I was not expecting much, but this game was very nice for what it is! Not too expensive, Fun gameloop, sleek interface and TouHoes. Now controller support would make it perfect.
Players by region
Where this game's players are, estimated from review languages.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $300.2K | 2.6K | 88% | $4.99 | |
| $4.9K | 8 | 75% | $23.99 | |
| $2.2M | 6.4K | 69% | $10.39 | |
| $14.7K | 73 | 70% | $14.99 | |
| $1.1K | 20 | 70% | $2.49 | |
| $2.6K | 20 | 95% | $5.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $16.2K | 152 | 86% | $5.99 | |
| $16.2K | 96 | 64% | $4.99 | |
| $16.2K | 278 | 86% | $2.99 | |
| $16.2K | 50 | 98% | $9.99 | |
| $16.2K | 114 | 86% | $4.99 | |
| $16.2K | 152 | 88% | $4.99 |