7Days! : Mystery Visual Novel

Name: 7Days! : Mystery Visual Novel
Rating: 4.371681 (148583 reviews)
Author: Buff Studio Co.,Ltd.

Buff Studio Co.,Ltd.

★ 4.4 (148,583 ratings)

⬇ 5,000,000+ downloads

Est. actual: 6,851,462

Style: Adventure

Free

Released: Dec 3, 2018

IAP: $2.99 - $3.99 per item

Contains ads

Rated: Teen

Mechanics Interactive story & choicesStory & characters

Signals

4 this week · 1 positive · 1 warning All of this week's signals →

📈Last 7 days +804 installs — 35% slower than the week before (+1.2K) · 142/day since Sep 18
🏆Among Adventure games top 13% by installs gained this week (10230 peers growing)
⭐Rating steady at ★ 4.37 since Sep 18
🛠Updates quiet · updated 66 days ago

Installs since launch

+6,263 installs · -8 ratings since Sep 18

SDKs in the app · version 2.5.4, analysed Oct 3, 2026

Ad mediationAppLovin MAX
Ad networkAppLovin SDK DT Exchange (Fyber)Google Mobile Ads (AdMob) 20.2.0 Meta Audience Network 6.8.0 Tapjoy Unity Ads 3.7.5
AnalyticsFirebase Analytics 18.0.0
Crash reportingFirebase Crashlytics 17.2.2
Engagement & messagingFirebase Cloud Messaging 21.0.0
Game engineUnity (engine)
PaymentsPlay Billing Library 3.0.3

7 mediation adapters

Adapters connect a mediation SDK to an ad network. An adapter alone does not mean the network’s own SDK is bundled.

AdMob mediation adapter → vungleAdMob mediation adapter → vungleAdMob mediation adapter → vungleAdMob mediation adapter → vungleAppLovin MAX adapter → AppLovinAppLovin MAX adapter → VungleAppLovin MAX adapter → Vungle

Found by static analysis of the app package; bundled is not the same as active. All SDKs →

Update history

2.6.2 Aug 28, 2026 · seen Sep 18, 2026

Only the current version so far — new entries appear as the game ships updates.

Trailer

7Days! : Mystery Visual Novel screenshot

7Days! : Mystery Visual Novel is an adventure game by Buff Studio Co.,Ltd. with 5,000,000+ downloads (about 6.9M estimated). +804 installs in the last 7 days. Rated 4.4 from 149K ratings. Released Dec 3, 2018. Install growth, rank history, SDKs and ad networks.

From the store listing: “Are you bored of the same old novels? Are you interested in interactive story games, visual novel, choice based storyline, and indie games, but you're tired of the same old? Try our Adventure Game, a Mysterious Novel where choices do matter! We are offering our free interactive storytelling game named ‘7Days: Mystery…”