Cthulhu Mythos RPG: The Sleeping Girl of the Miasma Sea - Retro Horror Adventure

7/28/2026, 2:11:06 AM

Release date: 9/26/2018

Tags: #rpg #indie #horror #2d #pixel-graphics #jrpg #lovecraftian

User Reviews

Score: 91%Positive
Review Count: 23 reviews
Fetched At: 8/29/2026, 7:58:23 PM

Reference prices

Japan

¥ 720 (JPY)

Steam JP

$6.99 (USD)

Steam Global

Live Store Snapshot

Body text may reflect the state at publication time. For the latest sale, price, and review changes, prioritize the live price panel, review panel, and the Steam store listing.

Japan Price: ¥ 720
Global Price: $6.99
Price in Your Region: ¥ 720Prices as Steam lists them per country. What you are actually charged depends on your Steam account settings.Regional prices checked: 29 Aug 2026
Sale Status: Regular pricing
Price Checked At: 8/29/2026, 3:50:18 AM

Key highlight

A retro-styled horror RPG blending classic JRPG elements with the Cthulhu Mythos. Customize your protagonist and explore a mysterious abandoned mansion in this atmospheric indie adventure.

Who this is for

Perfect for players who want to experience the Cthulhu Mythos and a retro RPG atmosphere simultaneously. Immerse yourself in a story woven with the poignancy of late summer and irresistible horror.

Details

Overview

Dive into the unsettling world of "Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea-", a retro-styled horror RPG that masterfully blends classic gameplay with the cosmic dread of H.P.

Lovecraft's Cthulhu Mythos. Developed by AlchemyBlue and published by DLsite, this indie title invites players into a narrative steeped in mystery and psychological terror.

Highlights

Retro Horror RPG: Experience a chilling adventure with a distinct 2D pixel art aesthetic, reminiscent of classic JRPGs but infused with modern Cthulhu Mythos elements.
Customizable Protagonist: Step into the shoes of a high school student and fully customize your character's name, gender, stats, and skills to forge your own path through the unfolding nightmare.
Lovecraftian Narrative: Unravel the dark secrets of an abandoned mansion deep in the mountains, where a summer getaway with friends takes a terrifying turn.

Who It's For

This game is a must-play for fans of retro RPGs, indie horror titles, and the intricate lore of the Cthulhu Mythos. Players who enjoy narrative-driven experiences with a focus on atmosphere and character customization will find themselves drawn into its eerie embrace.

Game Info

"Cthulhu Mythos RPG -The Sleeping Girl of the Miasma Sea-" offers a single-player experience with partial controller support and Steam Cloud integration. It was released on September 26, 2018, and is available in English.