Oni-Linux

A Port Of The 2001 Bungie Game Oni TO Linux x86-84

A native Linux x86_64 build is now working, built on top of the project's existing Platform_SDL layer. Chapter 1 verified fully playable end-to-end (level load, combat, save/load, mouse-look).

Build

Dependencies (Ubuntu/Debian):

sudo apt-get install cmake build-essential libsdl2-dev libgl1-mesa-dev \
    libopenal-dev libavcodec-dev libavutil-dev pkg-config

Fedora:

sudo dnf install cmake gcc gcc-c++ SDL2-devel mesa-libGL-devel openal-soft-devel pkgconf-pkg-config
# ffmpeg-devel needs RPM Fusion:
sudo dnf install https://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-$(rpm -E %fedora).noarch.rpm \
                 https://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-$(rpm -E %fedora).noarch.rpm
sudo dnf install ffmpeg-devel

Arch:

sudo pacman -S cmake base-devel sdl2 mesa openal ffmpeg pkgconf

Then:

mkdir build && cd build
cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo ..
make -j$(nproc)

Binary lands at build/bin/Oni. Drop your GameDataFolder (PC or Mac retail, auto-detected) next to it and run ./Oni from a real X11/Wayland session.

Known-good on

• Ubuntu 24.04, Fedora 43 (x86_64)

Notes

• No in-game data-folder picker dialog on Linux yet (that's Cocoa-only on macOS) — place GameDataFolder next to the binary manually.

• Save/settings persist to ~/Library/Application Support/OniARM64/ (yes, Library — kept for path-resolution parity with the macOS build; the directory is created automatically now).

• If mouse-look feels off on a high-refresh-rate display, the built-in frame limiter should already handle it (see HISTORY.md); ONI_FPS_CAP=0 disables it for comparison.

• Credits

• Original Source code used to port to linux

• https://github.com/andiyar/OniARM64