Monmusu Island
A curse wipes out monsters on Monmusu Island, leaving only Neko, Usagi, and Ushi. To save the island, they summon an outsider—an ordinary, perverted but inexperienced human MC—to help restore normalcy.
- Price:$4.99
- Release Date:5/22/2026
- Developer:Pjoy Games
- Publisher:Siluman Soft
- Last Updated:6/23/2026
- Steam App Id:4326550
Monmusu Island
- Windows
- Mac
- Linux
Steam Charts, Stats, and Live Player Count
At the moment, Monmusu Island has 1 concurrent player online and in-game. This is 83% lower than its previous all-time peak of 6 players achieved on 5/22/2026.
Review History Chart
Track historical review trends and overall ratings for Monmusu Island. It has received a total of 8 reviews on the Steam store and achieved a Player Score of 62 (8 user reviews).
Price History Chart
Track historical price changes and trends for Monmusu Island. Right now, it costs $4.99 in the Steam Store.
About Monmusu Island
Monmusu Island is an Indie, Casual, and Simulation game developed by Pjoy Games. On 5/22/2026, it was released on the Steam Store by Siluman Soft.
Players have rated Monmusu Island as "8 user reviews" out of 8 total reviews on the Steam Store. These are split between 6 positive reviews and 2 negative reviews — an overall 75% positive review rating.
It is available for gamers to download and play for $4.99. It can also be purchased through PJoY Best Bundle and Siluman Royal Bundle which give a discount off its base price.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Monmusu Island supports the following features:
- Single-player
- Steam Achievements
- Family Sharing
- Steam Cloud
From the Steam community, Monmusu Island has been tagged with the following user tags:
- City Builder
- Crafting
- Management
- Isometric
- Fantasy
- Idler
- Sandbox
- Simulation
- Nudity
- Hentai
- Romance
- Sexual Content
- Base Building
- Hidden Object
- Resource Management
- Creature Collector
- Anime
- Casual
- Relaxing
- Singleplayer
- 2D
- Building
Media & Sceenshots
Watch the featured video for Monmusu Island and see the latest screenshots from the Steam Store.
Related Bundles
Monmusu Island is included in 2 bundles in the Steam Store.
| Image | Name | Apps | Packages | Price | Actions |
|---|---|---|---|---|---|
 | PJoY Best Bundle | 3 | 1 | $11.67 | View |
 | Siluman Royal Bundle | 13 | 12 | $23.12 | View |
Related Packages
Monmusu Island is referenced by 1 package in the Steam Store.
| Name | Price | Actions |
|---|---|---|
| Monmusu Island | $4.49 | View |
Frequently Asked Questions
Soures & References
Steambase has best-in-class data powered directly by Steam, our data partners, and in-house experts. Data is enriched, cleansed, verified, and updated in realtime to ensure we surface the most up-to-date information. Learn more about the Steambase approach to data collection.
Monmusu Island data has been sourced from:
- Valve Corporation. (2026, June 23). Monmusu Island on Steam. Steam Store. https://store.steampowered.com/app/4326550
- Valve Corporation. (2026, June 23). Monmusu Island. Steam Community Hub. https://steamcommunity.com/app/4326550