Cat Island Petrichor- Artbook R18 ver.
Over 150 pages! Includes character designs, unused CGs, and spicy R18 adult content. A complete record of the warmth and sorrow behind Cat Island.
| Type | DLC |
| Release Date | 5/14/2026 |
| Developer | LuminousNote |
| Publishers | |
| Last Updated | 6/1/2026 |
| Steam App Id | 4655160 |
Cat Island Petrichor- Artbook R18 ver. Deals & Discounts
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About Cat Island Petrichor- Artbook R18 ver.
Cat Island Petrichor- Artbook R18 ver. is an Indie, RPG, Simulation, and Casual DLC developed by LuminousNote. On 5/14/2026, it was released on the Steam Store by Mango Party News, Mango Party, and Mango Party Council. Cat Island Petrichor- Artbook R18 ver. can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this dlc app.
Cat Island Petrichor- Artbook R18 ver. also supports 3 languanges in-game including Japanese, English, and Chinese (Traditional). Each language comes with varying levels of support for the in-game interface, audio, and fully translated subtitles.
According to Steam’s category system, Cat Island Petrichor- Artbook R18 ver. supports the following features:
- Single-player
- Family Sharing
- Downloadable Content
DLC & Related Apps
Cat Island Petrichor- Artbook R18 ver. is referenced by 1 other related app in the Steam Store.
| Image | Name | Type | Release Date | Actions |
|---|---|---|---|---|
 | Cat Island Petrichor | Game | 5/15/2026 | Steam Charts |
Related Packages
Cat Island Petrichor- Artbook R18 ver. is referenced by 1 package in the Steam Store.
| Name | Price | Actions |
|---|---|---|
| Cat Island Petrichor- Artbook R18 ver. | $4.49 | View |
Supported Languages and Localizations
Cat Island Petrichor- Artbook R18 ver. is available in 3 different languages with varying levels of support for the in-game interface, audio, and fully translated subtitles.
| Name | Interface | Audio | Subtitles |
|---|---|---|---|
| Japanese | Yes | No | Yes |
| English | Yes | No | Yes |
| Chinese (Traditional) | Yes | No | Yes |