Lumiri GameDB
Game library / Senpai and the Mysterious Island
Senpai and the Mysterious Island
Discover with Lumiri
Steam

Senpai and the Mysterious Island

Catalogue information flags mature content for this game.

An RPG where you get to uncover the secrets of a mysterious island inhabited by succubi that was rumored to contain a lost ancient technology. Play as either the warrior Hula Elstia, or Sonia Lanternlily to a variety of combat styles, and dress them up with various outfits.

Released · 2024-12-06

At a glance

About this game

Core game information and the store records it came from.

Title
Senpai and the Mysterious Island
Content
Game
Release date
2024-12-06
Developer
Ruhut Soft
Platforms
Windows
Connected stores
1
Steam Steam source details
Store title
Senpai and the Mysterious Island
Product ID
3070600
Developer
Ruhut Soft
Publisher
Saikey Studios
Store platforms
Windows
Source checked
2026-10-24 06:47 UTC

Open official store page ↗

Compare & explore

One game, connected stores

Each store keeps its own prices and observations. We prefer the latest recorded EUR price for Europa. When the displayed currency differs from the store amount, a separate approximate value may use the latest available ECB reference rate.

Some store links may be affiliate links. We may earn a commission from qualifying purchases, at no extra cost to you. This does not affect prices, ratings or rankings. How commercial links work.

Lumiri price context

Recorded price comparison

Matching store titles. One currency. One market.

EUR SE

Lowest recorded amount

11.79 EUR

Steam

Recorded 22 days ago Over 48 h old

Difference between stores

—

One comparable store. A difference needs another matching store price.

Distance from observed low

At observed low

Steam listing only. Low: 11.79 EUR.

Last seen
Newest included record

1 record is over 48 hours old.

1 included price record from 1 store · 1 linked listing

See the 1 included observation
  • Steam history →Senpai and the Mysterious Island
    11.79 EUR
    22 days ago · over 48 h old
How this comparison works

Only original EUR amounts recorded for SE and matching titles linked to this game are compared. Edition words and numbers must match. Other editions, source-market fallbacks and currency estimates are excluded.

These are recorded observations. Check the store for the current price, availability and included content. Historical lows belong to the named listing in this market and reflect the history Lumiri GameDB has collected.

How you can play

Features and tags

Select a feature to find other games that have it.

Show all features and tags

Store tags

Genres

  • Adventure
  • Casual
  • RPG

Categories and genres from the Steam store, observed 2026-10-24. Store tags from Steam, as players and the store apply them.

Game challenges

Achievements

9 achievements collected from supported stores. Percentages show the global share of players who unlocked each achievement, not personal player activity.

Steam

First Steps on New Shores

Reach the island to begin your adventure.

75.0% of players unlocked this
Steam

Machines in Command

The machines assume power on the island.

12.1% of players unlocked this
Steam

A Joyous Conclusion

Unite Alisa, Rei, and Seiran in harmony.

5.6% of players unlocked this
Steam

Alisa's Kingdom

Alisa claims control over the island.

1.8% of players unlocked this
Steam

Clash of Leaders: Seiran vs Rei

A rivalry between Seiran and Rei.

1.8% of players unlocked this
Steam

Between Rivals: Rei vs Alisa

Alisa and Rei settle their differences.

1.6% of players unlocked this
Show all 9 achievements · 3 more
Steam

Rei's Realm

Rei rises as the island's ruler

1.6% of players unlocked this
Steam

Seiran's Domain

Seiran takes charge of the island.

1.6% of players unlocked this
Steam

Fate of Foes: Seiran vs Alisa

Seiran and Alisa clash over control.

1.5% of players unlocked this
Player activity

Observed Steam player history

Latest 1,000 points at most. Individual observations.

Last observed Steam players
0
2026-11-12 20:21 UTC
Observed peak · 24h
—
Within the displayed history
All-time observed peak
0
· since Lumiri started observing
Average players · 24h
—
0 local samples · approximate for grouped data

Open full player history · no samples in the last 24h.

Recorded prices

Price history · Steam

EUR observations for market SE. History belongs to the selected store listing; regional prices and taxes may differ.

Historical low observed by Lumiri GameDB: 11.79 EUR, last seen

View 1 recorded prices
  • 2026-10-24 06:47: 11.79 EUR

Prices observed by Lumiri GameDB in EUR.