Here’s how to install the game on different platforms.

Call of Duty: Modern Warfare III (MW3) can be played on PC, PlayStation 5 (PS5), PlayStation 4 (PS4), and Xbox consoles. Read on for the step-by-step instructions on how to install Call of Duty MW3 on all of these platforms.

How to install Call of Duty MW3 (Image via Blizzard Entertainment)
How to install Call of Duty MW3 (Image via Blizzard Entertainment)

How do I download MW3 for PC?

To download the game on PC, launch the Battle.net app and sign in to your account. Next, click on the "Games" tab and select the "All Games" option. Choose "Call of Duty" and press the "Install" button. After pressing the "Continue" button, select "Modern Warfare III" and press the "Start Install" button.

  1. Sign in to the Battle.net app
  2. Click on the "Games" tab
  3. Select "All Games"
  4. Click on "Call of Duty"
  5. Press "Install"
  6. Press "Continue"
  7. Select "Modern Warfare III"
  8. Press "Start Install"
How to install Call of Duty MW3 on Steam (Image via Valve Corporation)
How to install Call of Duty MW3 on Steam (Image via Valve Corporation)

How to download Call of Duty MW3 on Steam

If you wish to play the game on Steam, then head over to the game's Steam page and purchase it if you don't have the game already. Next, visit your Steam Library, select Call of Duty MW3, and press the "Install" button.

  1. Launch Steam on your PC
  2. Visit the Steam Store
  3. Search for the game
  4. Add the game to your collection
  5. Find the game in your Steam Library
  6. Click on the "Install" button
Call of Duty MW3 screenshot (Image via Activision Publishing Inc.)
Call of Duty MW3 screenshot (Image via Activision Publishing Inc.)

How to download MW3 on Xbox

As to installing and downloading Call of Duty MW3 on Xbox, head to the "My games & apps" section and choose the "See all" option. Then, choose "Full library" and select "All owned games." Search and select the game and press the "Install all" button.

  1. Visit the "My games & apps" section
  2. Select "See all"
  3. Select "Full library"
  4. Choose "All owned games"
  5. Search for and select the game
  6. Press "Install"
Screenshot of the game (Image via Activision Publishing Inc.)
Screenshot of the game (Image via Activision Publishing Inc.)

Can you play Call of Duty MW3 on PS5?

Yes, you can play the game on PS5. To install it, head to the "Games" section on the home screen, select the "Game Library" option, go under "Your Collection," select the game, and press the "Download" button.

  1. Select the "Game Library" option
  2. Go under "Your Collection"
  3. Search for and select the game
  4. Press "Download"
Call of Duty MW3 screenshot (Image via Activision Publishing Inc.)
Call of Duty MW3 screenshot (Image via Activision Publishing Inc.)

Call of Duty Modern Warfare 3 PS4 download

To download and install the game on PS4, select the "Library" option from the home screen, head to the "Purchased" folder, look for the game, and press the "Download" button.

  1. Select the "Library" option
  2. Visit the "Purchased" folder
  3. Search for and select the game
  4. Press "Download"

Additionally, if you're installing the game via a game disc, then insert it into your console and follow the simple prompts. According to Activision, if you're on Xbox, make sure to get the Day One update after the installation is complete.

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