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 14 reviews on the Steam store and achieved a Player Score of 66 (Mostly Positive).
Monmusu Island Price
Monmusu Island costs $4.99 in the Steam store as of 6/23/2026. It can be purchased as a standlone game or through a bundle like PJoY Best Bundle or Siluman Royal Bundle which offer a discount off the game's base price.
Explore the price history chart below to track historical price changes and other pricing stats for Monmusu Island.
About Monmusu Island
Monmusu Island is a Casual, Indie, 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 "Mostly Positive" out of 14 total reviews on the Steam Store. These are split between 11 positive reviews and 3 negative reviews — an overall 79% positive review rating.
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
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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