Legendary Game Launcher

A free and open-source Epic Games Launcher replacement

Legendary is an open-source game launcher that can download and install games from the Epic Games Store on Linux and Windows. It's name as a tongue-in-cheek play on tiers of item rarity in many MMORPGs.

Right now it is in an early public testing stage and still needs a lot of work to work. But it does work!

What works:

• Authenticate with Epic
• Download and install games and their DLC
• Delta patching/updating of installed games
• Launch games with online authentication

Planned:

• PyPI/PPA distribution
• Simple GUI for managing/launching games
• Importing installed games from the EGS launcher
• Lots and lots of bug fixes, optimizations, and refactoring...

Requirements

• python 3.8+
• requests
• setuptools (for installation)

How to run/install

Package Manager

Depending on your Distro legendary may be available via (unofficial) packages that can be directly installed using your package manager. Check out the Available Linux Packages wiki page for details.

Currently this is limited to Arch Linux (AUR) but will hopefully be expanded to other distros rather soon.

Standalone

Download the latest legendary or legendary.exe binary from the latest release and move it to somewhere in your $PATH/%PATH%. Don't forget to chmod +x it on Linux.

The Windows .exe and Linux executable were created with PyInstaller and will run standalone even without python being installed. Note that on Linux glibc >= 2.25 is required, so older distributions such as Ubuntu 16.04 or Debian stretch will not work.

Python package

(A PyPI package will follow once it has gotten more testing.)

• Install python3.8, setuptools and requests
• Clone the git repository
• Run python3.8 setup.py install

Ubuntu 20.04 example

Ubuntu 20.04's standard repositories include everything needed to install legendary:

sudo apt install python3 python3-requests python3-setuptools-git
git clone https://github.com/derrod/legendary.git
cd legendary
sudo python3 setup.py install

Note that in this example we used sudo to install the package on the system, this may not be advisable depending on your setup.

Directly from the repo (for dev/testing)

• Install python3.8 and requests (optionally in a venv)
• cd into legendary/ (the folder with cli.py)
• run PYTHONPATH=.. python3.8 cli.py

Quickstart

To log in:

$ legendary auth

Authentication is a little finicky since we have to go through the Epic website. The login page should open in your browser and after logging in you should be presented with a JSON response that contains a code, just copy and paste the code into your terminal to log in.

Listing your games

$ legendary list-games

This will fetch a list of games available on your account, the first time may take a while depending on how many games you have.

Installing a game

$ legendary download Anemone

Important: the name used for these commands is the app name, not the game's name! The app name is in the parentheses after the game title in the games list.

List installed games and check for updates

$ legendary list-installed --check-updates

Launch (run) a game with online authentication

$ legendary launch Anemone

Tip: most games will run fine offline (--offline), and thus won't require launching through legendary for online authentication. You can run legendary launch <App Name> --offline --dry-run to get a command line that will launch the game with all parameters that would be used by the Epic Launcher. These can then be entered into any other game launcher (e.g. Lutris/Steam) if the game requires them.

Usage

usage: legendary [-h] [-v] [-y] {auth,download,uninstall,launch,list-games,list-installed} ...

Legendary Game Launcher

optional arguments:
  -h, --help            show this help message and exit
  -v                    Set loglevel to debug
  -y                    Default to yes for all prompts

Commands:
  {auth,download,uninstall,launch,list-games,list-installed}
    auth                Authenticate with EPIC
    download            Download a game
    uninstall           Uninstall (delete) a game
    launch              Launch a game
    list-games          List available (installable) games
    list-installed      List installed games

Individual command help:

Command: auth
usage: legendary auth [-h] [--import]

optional arguments:
  -h, --help  show this help message and exit
  --import    Import EGS authentication data


Command: download
usage: legendary download <App Name> [options]

positional arguments:
  <App Name>            Name of the app

optional arguments:
  -h, --help            show this help message and exit
  --base-path <path>    Path for game installations (defaults to ~/legendary)
  --game-folder <path>  Folder for game installation (defaults to folder in metadata)
  --max-shared-memory <size>
                        Maximum amount of shared memory to use (in MiB), default: 1 GiB
  --max-workers <num>   Maximum amount of download workers, default: 2 * logical CPU
  --manifest <uri>      Manifest URL or path to use instead of the CDN one (e.g. for downgrading)
  --old-manifest <uri>  Manifest URL or path to use as the old one (e.g. for testing patching)
  --base-url <url>      Base URL to download from (e.g. to test or switch to a different CDNs)
  --force               Ignore existing files (overwrite)
  --disable-patching    Do not attempt to patch existing installations (download entire changed file)
  --download-only       Do not mark game as intalled and do not run prereq installers after download
  --update-only         Abort if game is not already installed (for automation)
  --dlm-debug           Set download manager and worker processes' loglevel to debug


Command: uninstall
usage: legendary uninstall [-h] <App Name>

positional arguments:
  <App Name>  Name of the app

optional arguments:
  -h, --help  show this help message and exit


Command: launch
usage: legendary launch <App Name> [options]

Note: additional arguments are passed to the game

positional arguments:
  <App Name>            Name of the app

optional arguments:
  -h, --help            show this help message and exit
  --offline             Skip login and launch game without online authentication
  --skip-version-check  Skip version check when launching game in online mode
  --override-username <username>
                        Override username used when launching the game (only works with some titles)
  --dry-run             Print the command line that would have been used to launch the game and exit


Command: list-games
usage: legendary list-games [-h]

optional arguments:
  -h, --help  show this help message and exit


Command: list-installed
usage: legendary list-installed [-h] [--check-updates]

optional arguments:
  -h, --help       show this help message and exit
  --check-updates  Check for updates when listing installed games

Config file

Legendary supports some options as well as game specific configuration in ~/.config/legendary/config.ini:

[Legendary]
log_level = debug
; maximum shared memory (in MiB) to use for installation
max_memory = 1024
; default install directory
install_dir = /mnt/tank/games

; default settings to use (currently limited to WINE executable)
[default]
; (linux) specify wine executable to use
wine_executable = wine

; default environment variables to set (overriden by game specific ones)
[default.env]
WINEPREFIX = /home/user/legendary/.wine

; Settings to only use for "AppName"
[AppName]
; launch game without online authentication by default
offline = true
; Skip checking for updates when launching this game
skip_update_check = true
; start parameters to use (in addition to the required ones)
start_params = -windowed
wine_executable = proton

[AppName.env]
; environment variables to set for this game (mostly useful on linux)
WINEPREFIX = /mnt/tank/games/Game/.wine
DXVK_CONFIG_FILE = /mnt/tank/games/Game/dxvk.conf