xsystem35 for Android

Download

You can download prebuilt APKs here.

Build

Prerequisites:

Android SDK >=28
Android NDK >=r15c

Using Android Studio

Open this directory as an Android Studio project.

Command Line Build

Set environment variables and run the gradlew script in this directory.

Example build instructions (for Debian bookworm):

# Install necessary packages
sudo apt install git wget unzip default-jdk-headless ninja-build

# Install Android SDK / NDK
export ANDROID_SDK_ROOT=$HOME/android-sdk
mkdir -p $ANDROID_SDK_ROOT/cmdline-tools
wget https://dl.google.com/android/repository/commandlinetools-linux-10406996_latest.zip
unzip commandlinetools-linux-10406996_latest.zip -d $ANDROID_SDK_ROOT/cmdline-tools
mv $ANDROID_SDK_ROOT/cmdline-tools/cmdline-tools $ANDROID_SDK_ROOT/cmdline-tools/tools
yes | $ANDROID_SDK_ROOT/cmdline-tools/tools/bin/sdkmanager --licenses
$ANDROID_SDK_ROOT/cmdline-tools/tools/bin/sdkmanager ndk-bundle 'cmake;3.22.1'
export ANDROID_NDK_HOME=$ANDROID_SDK_ROOT/ndk-bundle

# Clone and build xsystem35
git clone https://github.com/kichikuou/xsystem35-sdl2.git
cd xsystem35-sdl2/android
./gradlew build  # or ./gradlew installDebug if you have a connected device

Usage

Basic Usage

Create a ZIP file containing all the game files and BGM files (see below for details), and transfer it to your device.
Open the app. A list of installed games will be displayed. Since no games have been installed yet, only the "Install from ZIP" button will be visible. Tap it.
Select the ZIP file you created in step 1.
The game will start. To simulate a right-click, tap the black bars on either the left or right, or top or bottom of the screen.

Preparing a ZIP

Include all files from the GAMEDATA folder (such as .ALD files and others). .EXE and .DLL files are not necessary, but you can include them if you want.
Music files (.mp3, .ogg, or .wav) whose filenames end with a number will be recognized as BGM files. For example:
- Track2.mp3
- 15.ogg
- rance4_03.wav (Note: The filename shouldn't be rance403.wav, as it would be treated as the 403rd track.)

Note: This ZIP format is also compatible with Kichikuou on Web.

Miscellaneous

You can export or import save files via the game list's option menu.
To uninstall a game, long-tap its title in the game list.

Known Issues

Android versions older than 7.0 cannot handle ZIP files containing Shift-JIS filenames. This issue occurs with some ZIP files distributed on retroc.net. If you encounter the error message "This type of ZIP is not supported," unzip the file on your PC and re-archive it using modern ZIP creation software.