Cat Island Petrichor- Artbook R18 ver.

Overview

Cat Island Petrichor- Artbook R18 ver. is a Steam DLC connected to Cat Island Petrichor. It was prepared by LuminousNote, published by Mango Party, Mango Party News, Mango Party Council, and released on May 14, 2026. This page focuses on the store listing, screenshots, price, requirements, and its relationship to the main game rather than presenting it as a normal live-player game.

Store reviews and relationship

Cat Island Petrichor- Artbook R18 ver. is a DLC, so player-count observations and tracked peak are not meaningful in the same way they are for a base game. The useful signals here are reviews, store recommendations, price, platform support, and the link back to Cat Island Petrichor.

Language and system requirements

Cat Island Petrichor- Artbook R18 ver. is available in 3 languages including:

3 regional rating boards including dejus, steam germany, and igrs

Recommendations and store value

Cat Island Petrichor- Artbook R18 ver. has recommendation data pending. Twitch streaming and unit-sales estimates usually belong on the parent game page, while this page is better for checking the DLC, price, media, and store details.

Cat Island Petrichor- Artbook R18 ver. overview details

Cat Island Petrichor- Artbook R18 ver. is tracked as Steam Store content with pricing, reviews, packages, media, requirements, and its relationship to the parent app.

Steam Store description

This artbook contains R18 adult-only content , including full adult illustrations and related design materials. Spoiler warning: This artbook contains endings and important story content. It is recommended to complete the game before viewing it. After downloading, the Artbook can be found at: %SteamLibrary%\steamapps\common\CatIslandPetrichor\CatIslandPetrichor Please locate it manually in your local folders. 【About Cat Island Petrichor Digital Artbook】 Welcome to the behind-the-scenes world of Cat Island Petrichor . This digital artbook invites you to dive deep into the creative heart of Cat Island, featuring a comprehensive collection of precious visual records—from initial concepts to final masterworks. 【Content Highlights】 The Souls of the Characters: Includes stunning character portraits of the heroines, design concepts, and detailed character background profiles. Secrets Behind the Creation: Explore early development rough sketches, intricate line art, and rare discarded CGs that were left out of the final game due to narrative adjustments. Environmental Aesthetics: A look back at the design sheets for the 5 major areas, including the Rest Area, Shrine, and Ruins. Discover how the atmosphere of Cat Island was meticulously crafted to shift with time and weather. 【Specifications】 Over 150 Pages of Content: A massive volume showcasing the blood, sweat, and tears of the development team. This artbook is a microcosm of the time we spent together on Cat Island. Whether you wish to follow the footsteps of Makoto’s investigation more closely, or simply want to cher…

SteamPulse editorial summary

Cat Island Petrichor- Artbook R18 ver. is listed as a DLC with $4.49 (10% off from $4.99). It supports Windows, belongs to Single-player, Downloadable Content, and Family Sharing, and is associated with Casual, Indie, RPG, and Simulation. Because it is a DLC, SteamPulse focuses on its Store listing, relationship to the parent app, media, packages, and metadata rather than treating it like a standalone concurrency page.

Content descriptors

All characters depicted are over the age of 20. Content Warning! This DLC depicts: Self-harm, Mental Health Issues, Explicit nudity and R18 adult-themed illustrations.

Support and legal notes

Real questions answered from SteamPulse data, including live players, monthly momentum, review sentiment, regional audience signals, Twitch activity, and current Steam pricing.