# Yunyun Syndrome!? Rhythm Psychosis - Extra Song Pack feat. Touhou Project

> Indie game profile, served by indielist (https://indielist.games). Sales estimate uses the white-box Boxleiter algorithm; numbers are approximate (±50%).

## Snapshot
- **Primary genre**: Adventure
- **Release year**: 2026
- **Release date**: Apr 23, 2026
- **Platforms**: windows
- **Launch price**: $3.99 USD
- **Steam reviews**: 17
- **Positive review %**: 94%
- **Steam app**: https://store.steampowered.com/app/4535490

## Developer
- **Studio**: [Alliance Arts](https://indielist.games/studios/alliance-arts)

## Publisher
- **Name**: [Alliance Arts](https://indielist.games/publishers/alliance-arts)

## Sales estimate (white-box, version v1.0)

- **Units (median)**: 680 (range 408 – 952)
- **Net revenue (median)**: $1,550 USD
- **Boxleiter NB used**: 40
- **Algorithm version**: v1.0

### NB breakdown
- `base`: +50
- `year_2026`: -10
- `price_$4`: -20
- `positive_94%`: +10
- `genre_Adventure`: +10

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Source: indielist (https://indielist.games/games/yunyun-syndrome-rhythm-psychosis-extra-song-pack-feat-touhou-project-4535490)
Estimates are not official sales data. Methodology: docs/sales-algorithm.md. Always verify large numbers with official sources before citing.