Old School RuneScape Proper UI Scaling with Windows

When using a scaling level above 100% in Windows, applications without an explicit setting may scale non-ideally. In OSRS’s case, this stretches everything larger, and this makes the game blurry, compared to using the game’s native UI scaling. This is an easy fix that works with other games and applications too!

Find OSRS’s Executable

Short version:

• Find osclient.exe and go to Properties

Long version:

1. Find OSRS in Steam
2. Right-click it -> Manage -> Browse local files
3. Go into the bin folder, followed by the win64 folder
4. Find osclient.exe
5. Right-click osclient.exe -> Properties

Override HiDPI Scaling Behavior

Short version:

• Override high DPI scaling behavior -> Scaling performed by -> Application

Long version:

1. Right-click osclient.exe -> Properties
2. Compatibility -> Change high DPI settings
3. High DPI scaling override -> Override high DPI scaling behavior. Scaling performed by: Application
4. OK -> Apply -> OK

In-game Settings

Short version:

• Settings -> Interfaces -> Interface scaling

Long version:

1. Run OSRS and log-in
2. Click the Settings wrench -> All Settings
3. Click Interfaces on the left side
4. Find the Interface scaling bar towards the top of the Settings window
5. Adjust the scaling to whatever you want

Caveats

• This only works from the C++ OSRS client available on Steam at the time of writing
• Thus, this isn’t applicable on mobile, RuneLite, or any Java client
• This also doesn’t seemingly apply to macOS or Linux operating systems
• This is only necessary if you use a system-wide scaling level above 100%
• For a 55″ 4K TV, I found both an OS and OSRS scaling level of 200% to be ideal at monitor-distance, and 300% at TV-distance
• These same instructions apply to RuneScape/RS3 as well (it has the same scaling oddity and fix), and probably other unrelated games too