How to make Oldschool Runescape full screen on Windows PC and Mac OS [Solved]

Learn 2 ways to make Oldschool Runescape fullscreen on Windows PC and Mac OS.
How to make Oldschool Runescape full screen on Windows PC and Mac OS [Solved]




For fans who've played Runescape back in the early 2000's, OSRS is a dream come true to us nostalgia geeks. The problem is, some older apps just don't work as well as we remembered. With Jagex's "New" Old School Runescape client, it's actually not possible to simply use [Alt] [Enter] or [F11] to play the game in fullscreen.

If you're amongst one of these adventurers, here are other 3 surefire ways we found to make OSRS's client window finally play in full screen.

  • Exclusive Steam Fullscreen Options
  • Download and play OSRS with RuneLite's Plugins
  • Use another Third Party App to go fullscreen
Oldschool Runescape Trailer

Solution 1: Using a Uniquely Steam Client-only Fullscreen Option

As the title suggests, this is a setting exclusive to the Steam version of OSRS. For players on non-Steam versions of OSRS, you can still access this option, but only if you play OSRS from Steam. Fortunately, there is an option to link your account to Steam, so don’t worry about starting all over again.

Steam Only fullscreen option

How to change Old School Runescape fullscreen settings:

  1. At the login screen of OSRS, tick the [Fullscreen?] option found at the lower left.
  2. If you are already in-game, log out to view the login screen, then repeat step 1.

If you can’t find where to logout, simply restart the game. Or you can do the below:
On the modern layout, the logout button is a [X] found at the top right.
On the classic layout, the logout button is a Door Icon, found at the bottom right.

Solution 2: Launch OSRS with RuneLite to play "Full Screen" with the Classic Stone Button Style look

For players on Windows PC, Mac OS, and even Linux, you have the option of using RuneLite, a wonderful third party gem that'll help improve your quality of life in OSRS.

One of these quality life changes would be playing the game just how we remembered it: with that stone button style user interface.

Runelite Plugin for Old School Runescape

Firstly, you'll have to download RuneLite, so head over to their website to download and install the plugin. Once done, we can open RuneLite to access Old School Runescape, and modify the display mode via one of RuneLite's plugins.

To enjoy the game in a fixed layout format, here's how you can do so with RuneLite:

  1. Download, install, then open RuneLite.
  2. On the right bar, click on the Wrench Icon to open up settings.
  3. Search for [Stretched Mode] and activate it.
  4. You're now playing in an enlarged resolution!
RuneLite Stretched Mode

Stretched Mode's additional settings: To improve your visual quality after this upscale, you can toggle [Resizable Scaling] to 80% - 100% for some decent visual fidelity. You can even toggle [Improve Performance] to gain better frame rate if you are experiencing FPS drops!

Stretched Mode custom settings RuneLite for OSRS Old School Runescape

A small disclaimer: RuneLite does not actually make OSRS play in true full screen mode, but rather it scales up the game to fit RuneLite's window size.

This makes the app a perfect solution for playing Old School Runescape with that classic 2000's look. As a close second to playing OSRS in full screen mode, it's not a bad solution!

Solution 3: For Windows Only, use Borderless Gaming to make Old School Runescape go full screen

For players on Windows PC, there is an option to use a third party application called Borderless Gaming to make Old School Runescape play in “full screen” mode. Technically, it is Borderless Windowed mode.

Just think of it as your regular Windowed mode, maximized to the entire screen and without the usual borders you get. Also known as borderless fullscreen mode.

Borderless Gaming App for Old School Runescape

To toggle Borderless Fullscreen mode with Borderless Gaming, do this:

  1. Install Borderless Gaming from CodeUSA’s Github. Link here.
  2. Open the application, you should see an interface similar to below.
  3. Select Old School Runenscape to highlight it.
  4. Press the Arrow icon to add Old School Runescape to your favorites. Doing so will auto Borderless Fullscreen the game every time you start it.
  5. Alternatively, press the 3rd button (highlighted in Red) to enlarge it.

Once you do all 5 steps above, OSRS should now be playing in fullscreen. If, however, the game is just partially fullscreen, you probably have OSRS set to fixed classic layout in your display settings. 

To edit your display settings, do this:

  1. Click on the wrench button to open your display settings.
  2. Find the layout menu, and enable resizable mode (Classic or Modern, doesn’t matter. As long as you are in resizable mode).
  3. The game should now be playing in full screen.

Now, if you wish to turn off fullscreen, you just need to undo the Borderless Gaming App setting. To shrink Old School Runescape back into Windowed mode, just press the button highlighted in blue. If OSRS is in your favorites in Borderless Gaming, move it back to the left by pressing the Left Arrow button.

OSRS Steam Screenshot

Voila! And now you should be able to play Old School Runescape in awesome full screen mode. If you want to do the same for New Runescape (or Runescape 3) check out these guides below:

If you are into old school games like Runescape or play other older games, be sure to check out our other guides like: How to Make Garry’s Mod Fullscreen.



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