MONMUSU: Free-to-Play Idle Monster Girl Summoning Sim

7/23/2026, 5:12:57 PM

Release date: 5/11/2018

Tags: #sexual-content #nudity #free-to-play #anime #incremental #casual #hentai #indie

User Reviews

Score: 80%Very Positive
Review Count: 5,244 reviews
Fetched At: 7/23/2026, 5:12:57 PM

Live Store Snapshot

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Japan Price: Free to Play
Global Price: Free to Play
Sale Status: Regular pricing
Price Checked At: 7/23/2026, 5:12:56 PM

Key highlight

MONMUSU is a free-to-play idle simulation game where players summon monster girls by earning money and gathering materials. Released in 2018 by Tentacle Games and NEKO WORKs, it features single-player, Steam Achievements

Who this is for

Recommended for players looking for a casual, free-to-play idle simulation game focused on collecting and nurturing monster girls.

Details

Overview

MONMUSU is a free-to-play idle simulation game where players step into the shoes of an aspiring summoner with a passion for monster girls. The core gameplay loop revolves around earning in-game currency to acquire summoning materials, which are then used to summon a variety of unique monster girls. Developed by Tentacle Games and published by NEKO WORKs, this title offers a casual experience focused on collection and progression.

Highlights

Genre: Casual, Free-to-Play, Indie simulation with incremental elements.
Features: Single-player, Steam Achievements, and Steam Trading Cards are available, alongside in-app purchases.
Release & Development: Launched on May 11, 2018, by Tentacle Games and NEKO WORKs.

Who It's For

This game is perfect for players who enjoy idle or incremental games, casual simulation experiences, and those who appreciate anime-inspired aesthetics. If you like the idea of gradually building up a collection through passive gameplay and managing resources, MONMUSU might be right up your alley.

Game Info

MONMUSU offers a straightforward idle simulation experience. Players focus on earning money, which fuels their ability to gather summoning materials. The ultimate goal is to summon and presumably collect various monster girls. The game supports English, Traditional Chinese, and Japanese languages. It's designed for a single-player experience and includes features like Steam Achievements and Trading Cards to enhance engagement. While free to play, it does feature in-app purchases.