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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.

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Developer
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Release
May 21, 2026
73 days ago
Steam Reviews
Mostly Positive14 reviews78.6%

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Search Google: Who developed Monmusu Island?Developer scaleThe operating scale of the game's developer.
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Search Google: Who controls the creative direction and IP for Monmusu Island and Pjoy Games?Creative controlWho appears to retain creative control of the game.
Search Google: What is the release status of Monmusu Island?Release statusWhether and how the game has been released.

Media

10 items

About the Game

Story

On Monmusu Island, a pandemic-based curse has caused the extinction of monsters. Neko from the cat race, Usagi from the rabbit race, and Ushi from the cow race make up the final 3 species of female monsters.

The three race has taken the initiative to restore normalcy to Monster Island. They learn ancient magic that allows them to call on outside beings to assist them in finding solutions. They carry out the ceremony and are successful in calling out assistance.

MC is a regular person who only engages in daily masturbation and eroge gaming. Although he is incredibly perverted, he is essentially a virgin and has never made love.

Gameplay

Point and Click Adventure in Idle Simulation game!

This game features an idle simulation game where you need to buy and click facilities to upgrade your way for the future island you own!

You will need a massive amount of gold, but nothing can be between your dream of getting the harem as big as possible.

When your trusted golden hand and wrist got tired, just take off the gloves and the girls will generate gold in your absence, even when offline.

Build and upgrade facility for your monster girls and generate lots of gold!

Hire more girls in your farm!

By hiring and gifting the girls with the items you can buy, you can get a private date scenes with all of the girls in the game. 
Currently we have 4 girls that would love to have 6 special date only for you!

Collect all scenes of 24 girls and you can become a harem master

Hand-drawn Artworks

Hand-drawn sexual scenes presented in a 2D art style