Mocktail
Mocktail runs the Android x86_64 Roblox client on Linux, including a Linux
userspace hosted by FreeBSD's Linuxulator. It provides the Android ABI and JNI
pieces the client expects, then connects them to SDL3 and Vulkan or OpenGL on
the Linux side.
Mocktail is an independent community project. It is not affiliated with Roblox
Corporation or VinegarHQ and does not distribute the Roblox client.
How it works
Roblox APK -> signature and ABI checks -> Bionic + JNI -> SDL3 + Vulkan/OpenGL
The APK is checked before any native code is loaded. It is downloaded on first
launch and is not bundled with Mocktail. The last working copy is kept in case
an update fails.
Install with Flatpak
Install the stable release from Flathub:
flatpak install flathub space.bigrat.mocktail
flatpak run space.bigrat.mocktail
Nightly builds are produced automatically from the latest main branch:
flatpak install --user https://mocktail.bigrat.space/mocktail.flatpakref
flatpak run space.bigrat.mocktail
Install from the AUR
Arch Linux users can install either the pinned source release (mocktail) or
the current development version (mocktail-git) with an AUR helper:
paru -S mocktail-git
# or
yay -S mocktail-git
Use mocktail instead of mocktail-git to build the pinned release from
source, or install the stable prebuilt package with paru -S mocktail-bin or
yay -S mocktail-bin.
Install with DNF
Fedora 44 users can install either the stable mocktail package or the
mocktail-nightly package built from main:
sudo curl -fsSL https://mocktail.bigrat.space/rpm/mocktail.repo \
-o /etc/yum.repos.d/mocktail.repo
sudo dnf install mocktail
# or
sudo dnf install mocktail-nightly
Install with APT
Ubuntu 26.04 users can install either the stable mocktail package or the
mocktail-nightly package built from main:
sudo install -d -m 0755 /etc/apt/keyrings
sudo curl -fsSL https://mocktail.bigrat.space/mocktail-packages.gpg \
-o /etc/apt/keyrings/mocktail.gpg
echo "deb [arch=amd64 signed-by=/etc/apt/keyrings/mocktail.gpg] https://mocktail.bigrat.space/apt mocktail main" | \
sudo tee /etc/apt/sources.list.d/mocktail.list >/dev/null
sudo apt update
sudo apt install mocktail
# or
sudo apt install mocktail-nightly
Direct downloads
Direct AppImage, DEB, and RPM downloads are available from the
Website and
GitHub Releases.
Screenshots
FFlag overrides
Put a JSON object in $XDG_CONFIG_HOME/mocktail/fflags.json (usually
~/.config/mocktail/fflags.json). Mocktail applies it on the next launch.
{
"FFlagExample": "True",
"DFIntExample": "120"
}
FAQ
To see the most Frequently Asked Question go check FAQ.md
Building
Linux x86_64 is supported. Experimental FreeBSD 15.1 Linuxulator support has
been tested with an x86_64 Fedora 44 userspace. On FreeBSD, Mocktail runs
inside Linuxulator; it is not a native FreeBSD binary. Building requires CMake
3.20+, Git, pkg-config, LLD, binutils, a C++17 compiler, SDL 3.4+, SDL3_ttf,
Vulkan, EGL, libplacebo, fontconfig, libcurl, OpenSSL, libelf, libyaml, minizip,
Capstone 5, utf8proc, nlohmann/json, GTK4, libadwaita 1.6+, and WebKitGTK 6.0.
See the FreeBSD Guide for setup and launch instructions.
Ubuntu 26.04+
sudo apt update
sudo apt install build-essential cmake git ninja-build pkg-config lld \
libsdl3-dev libsdl3-ttf-dev libcurl4-openssl-dev libssl-dev \
nlohmann-json3-dev libyaml-dev libelf-dev libminizip-dev \
libcapstone-dev libgtk-4-dev libadwaita-1-dev libwebkitgtk-6.0-dev \
libutf8proc-dev libfontconfig1-dev libegl-dev libvulkan-dev \
libplacebo-dev zlib1g-dev
Arch Linux
sudo pacman -S --needed base-devel cmake git ninja pkgconf lld sdl3 sdl3_ttf \
curl openssl nlohmann-json libyaml libelf minizip capstone gtk4 \
libadwaita webkitgtk-6.0 libutf8proc fontconfig libglvnd \
libplacebo vulkan-headers vulkan-icd-loader zlib
Fedora 44+
sudo dnf install gcc-c++ cmake git ninja-build pkgconf-pkg-config lld \
SDL3-devel SDL3_ttf-devel libcurl-devel openssl-devel \
nlohmann-json-devel libyaml-devel elfutils-libelf-devel minizip-ng-compat-devel \
capstone-devel gtk4-devel libadwaita-devel webkitgtk6.0-devel \
utf8proc-devel fontconfig-devel libglvnd-devel vulkan-headers \
vulkan-loader-devel libplacebo-devel zlib-ng-compat-devel
git clone --recurse-submodules https://github.com/komaruworld/mocktail.git
cd mocktail
make build
./build/mocktail
Known limitations
Mocktail does not currently work with hardened_malloc. Using
hardened_malloc may cause Mocktail to fail to start or crash during runtime.
Run Mocktail without hardened_malloc enabled.
License
Apache License 2.0. Third-party components keep their own licenses.
Support
You can support the project by giving it a star or with cryptocurrency:
- USDT (TON):
UQCi6Yzcc9cOctoij6n_r1K90-OdVxAT0D_xo2UzGKkQaJDY
- USDT (TRC20):
TNPMG9Vig2xiuo2r1QqnXRChPH7Vu28Jmx
Mocktail 是一个实验性的兼容运行时，可在 Linux 上运行 Android x86-64 版 Roblox 客户端，甚至可以借助 FreeBSD 的 Linuxulator 在 FreeBSD 上运行。它实现了客户端所需的 Android ABI/JNI 部分，并把它们挂接到宿主侧的 SDL3 以及 Vulkan 或 OpenGL。