Animal Crossing PC Port

_{A PC port of Animal Crossing (GameCube)}

Important

This project is made to test our Rainfall library, originally built for Courage-Reborn Twilight Princess Port on another game. If you want to contribute, please join our discord : https://discord.gg/3kPcPs9t5y

Important

This repository does not contain any game assets or assembly. A legally obtained copy of the original game is required.

---

About

Animal Crossing PC Port is a native, cross-platform port of Animal Crossing (GameCube), built on top of the Animal Crossing decompilation. The original game code runs unchanged with minor modifications.

Input and audio use SDL3. Rendering uses a custom OpenGL backend by default, or Rainfall when built with -DAC_USE_RAINFALL=ON.

Supported disc version: GAFE01_00 (USA, Rev 0).

---

Installation

Pre-built Windows builds are on the Releases page.

1. Download and extract the latest zip
2. Put your disc image in the rom/ folder next to the executable
3. Run AnimalCrossing.exe

The game loads assets from the disc image at startup. No extraction step is needed.

---

Supported platforms

• Windows (32-bit and 64-bit)
• macOS (Apple Silicon and Intel)
• Linux (x86_64 and ARM64)

A legally obtained GameCube ISO, GCM, or CISO of Animal Crossing (USA) is required at runtime.

---

Building

Clone with submodules:

git clone --recurse-submodules https://github.com/flyngmt/ACGC-PC-Port.git
cd ACGC-PC-Port/pc
mkdir build && cd build
cmake ..
cmake --build . -j$(nproc)

Dependencies: CMake 3.16+, SDL3, OpenGL. Clang or GCC both work on 64-bit.

macOS example (64-bit, Rainfall renderer, Clang):

brew install sdl3 cmake
git submodule update --init pc/external/rainfall
cd pc/build64
cmake .. -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ \
         -DCMAKE_PREFIX_PATH=/opt/homebrew/opt/sdl3 -DAC_USE_RAINFALL=ON
cmake --build . -j8

GCC also works if you prefer it (brew install gcc, then gcc-16 / g++-16).

Windows (MSYS2): use the MINGW32 or MINGW64 shell, install gcc, cmake, and SDL3, then run cmake .. from pc/build.

Place your disc image in rom/ next to the built executable. The port also checks orig/ and the current directory.

Launch options:

• --verbose - extra logging
• --no-framelimit - unlock the frame limiter
• --model-viewer [index] - debug model viewer
• --time HOUR - override the in-game hour (0-23)

CMake options:

• -DAC_USE_RAINFALL=ON - use the Rainfall GX backend instead of legacy pc_gx
• -DAC_VERSION=0 - game region (0=USA, 1=AUS, 2=JPN)

---

Controls

Keyboard defaults are in keybindings.ini next to the executable. SDL3 gamepads are supported with hotplug.

Key	Action
WASD	Move
Arrow keys	Camera
Space	A
Left Shift	B
Enter	Start
X / Y	X / Y
Q / E	L / R
Z	Z trigger
I / J / K / L	D-pad

Graphics options live in settings.ini (resolution, fullscreen, vsync, MSAA). Dolphin-compatible HD textures go in texture_pack/.

Save files use GCI format in the save/ folder and work with Dolphin exports.

---

Credits

• ACreTeam/ac-decomp - Animal Crossing decompilation
• Linifadomra/rainfall - GX renderer (optional backend)
• libsdl-org/SDL - Windowing, input, audio
• FIX94/fixNES - NES emulator for the in-game console

---

License

The decompilation sources follow CC0 1.0. The PC port layer (pc/ and TARGET_PC changes) is MIT.

This project does not include any Nintendo intellectual property. You need a legally obtained copy of the original game disc image at runtime.