How to Install MWLL

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The install process for Mechwarior: Living Legends (MWLL) is undergoing some rapid changes. To help developers and you, this guide will explain the process for version 0.8.5.

You may also use the reddit guide that will lead you through the installation of MWLL.

NOTE: This guide will focus on Windows install; for other OS you might try the Linux Installation and Mac Installation

Minimum System Requirements

  • CPU: Intel Pentium 4 2.8 GHz (3.2 GHz for Vista), Intel Core 2.0 GHz (2.2 GHz for Vista), AMD Athlon 2800+ (3200+ for Vista)
  • RAM: 1 GB (1.5 GB on Windows Vista)
  • Video Card: NVIDIA GeForce 6800 GT, ATI Radeon 9800 Pro (Radeon X800 Pro for Vista)
  • VRAM: 256MB of Graphics Memory
  • Storage: 10 to 15GB (new maps take additional space)
  • Sound Card: DirectX 9.0c Compatible
  • OS: Microsoft Windows XP with Service Pack 2 or Microsoft Vista (See Also Linux Installation and Mac Installation)
  • DirectX: DX9.0c or DX10

Note: The Action Mapper tool that is used to change keybindings uses 32-bit Java.


If you had MWLL installed previously, a clean install is recommended.

Download file and Patch

  1. Go to the official download page at and:
    • Download the 0.8 Installer
    • Download latest patch (0.8.5)

Note: It is recommended to use the torrent when possible, for a faster download and automated error checking. If for some reason you can't use torrent, the mirror can be used.

Extract the files

File:7zipExtract820 350.jpg

Use 7-zip or a similar utility to extract the files to a temporary location.

  • Note: Using the built in windows file manager for extraction will result in errors and ultimately will not work.

Install the files

  1. Install 0.8 by running MWLL-0.8CE+CW_setup.exe
  2. Patch up to 0.8.5 by running MWLL-0.8.x-to-0.8.5_installer.exe

Run for the first time

MWLL Launcher

File:Qt3 350.jpg

  1. Run launcher shortcut from start menu or desktop
  2. Agree to UAC dialogue if prompted
  3. If asked, Enter your the in game name you would like to use
  4. Click Configuration and set options as appropriate for you (64 bit is no longer0.8.5 set by default)
  5. Click Start Mechwarrior Living Legends
  6. Select Multiplayer
  7. Select Internet Game
  8. Fill in details in Create Gamespy ID/Account dialog
    • Note: The email need not be real as it is not verified or used.
  9. Continue to login dialogue and Select Auto login Account to allow skipping of the login dialogue in future.

Connecting to a server

File:Qt5 350.jpg
  • Once in internet Games Tab you will be shown a list of active servers. Double-click a server to connect to it.

It's not working! Where can I get help?

If you're having trouble getting the game to install or run, you can check the Troubleshooting page or join the MWLL Discord server - ask for help in #tech_support or #mwll_general.

What's Next?

If you're new to MWLL, reading the MWLL Basics Guide will help orient you with the interface and how to play the game.

Otherwise, join a game in progress and have fun!