macOS

If you don't know where to get the game files for the version you want to play yet - check out the How to acquire data files? guide before following instructions here.

1. Download doukutsu-rs

• Go to the doukutsu-rs downloads page: https://get.doukutsu.rs

• Choose either the Apple Silicon (ARM64) version or the Intel (x86_64) depending on the type of your processor. All Macs made since 2024 have an Apple silicon processor.

As with most Mac programs, it is recommended that you store the application file (dokutsu-rs.app) in either the global or user Applications directory on your computer.

2. Add game data

• Right-click on the downloaded application (dokutsu-rs.app) and click Show Package Contents.

• Inside the application, navigate to Contents/Resources/ and place the Cave Story game data directory in the folder. The data directory is a folder named "data" in the original game files.

• If you are using freeware data files downloaded from the tribute site, place the original Doukutsu.exe executable near the doukutsu-rs executable file in Contents/MacOS/. After the first run you will get a «No stage table found» or «Texture "Loading" is missing» error. Copy all files from the Contents/MacOS/data/ folder to the Contents/Resources/data/ folder and delete Contents/MacOS/data/.

Note that due to the self-contained nature of Mac applications, this will have to be repeated if a newer version is downloaded.

3. Authorise application

Modern Mac computers only permit software that has been signed and notarised to run by default. As of this writing, dokutsu-rs is not notarised. To grant permission for it run:

• Open the application. A notice will be displayed that dokutsu-rs does not have permission to run.

• Open System Preferences and select Privacy and Security settings.

• Scroll down to the bottom and authorise dokutsu-rs by selecting Open Anyway. The application can now be opened normally in the future.

Updating doukutsu-rs to a Newer Version

• Updating doukutsu-rs is very easy! When a new version is released, simply download the new .app program file from the downloads page (just like you did in Step 1).

• Important: Make sure doukutsu-rs is completely closed before updating.

• Once downloaded, repeat Step 2 with the new application file you downloaded. The extant application can then be replaced if desired.

• Your settings and save files are safe! Updating only replaces the program itself. Your game settings and saved games are stored separately (Where are the saves/settings/logs?), so they will not be affected by updating the program file.

Setup Complete!

You are now ready to play doukutsu-rs. Run doukutsu-rs.app to start the game. Enjoy!