Yes, you can manually update VKD3D-Proton when using Steam, but it is not normally installed or updated as a separate Steam application. VKD3D-Proton is distributed as part of Proton, so the most practical way to get a newer version is usually to switch the game to a newer Proton release.
For users who need a specific fix before it reaches their current Proton version, custom Proton builds provide another option. Directly replacing VKD3D-Proton files is also possible, but it is an advanced method and can be overwritten when Steam updates the Proton installation.
The right approach depends on whether you simply want a newer version or need to test a particular VKD3D-Proton change.
How VKD3D-Proton Updates Through Steam
Steam manages Proton as the compatibility environment for Windows games. VKD3D-Proton is included within that environment, so there is no normal Steam Library entry where you can select Update VKD3D-Proton.
When you install a newer Proton release, its bundled components are used when the game launches.
This makes Proton version selection the simplest way to change the VKD3D-Proton version available to a game.
Update VKD3D-Proton by Changing Proton Version
The easiest method is to select a newer Proton version for the game.
Open Steam and go to your Library. Right-click the game, choose Properties, and open the Compatibility section.
Enable the option to force the use of a specific compatibility tool. Steam will then show the Proton versions available on your system.
Choose the Proton release you want to test. If it is not installed, Steam will download it.
After the installation finishes, launch the game and check whether the issue or behavior you were investigating has changed.
This method avoids manually editing Proton files and is usually the cleanest approach.
Why Proton Version Matters
Different Proton releases can contain different VKD3D-Proton versions and changes.
A newer Proton release may include improvements related to:
- Direct3D 12 compatibility
- Graphics rendering
- Game-specific fixes
- Vulkan interaction
- Shader behavior
- Hardware compatibility
- Performance
- Stability
Therefore, if you are looking for a newer VKD3D-Proton implementation, check the Proton release information first. The required change may already be included in a newer Proton version.
Update VKD3D-Proton for a Single Game
You do not have to change the Proton version for your entire Steam library.
Steam allows compatibility settings to be configured separately for individual games. This makes it possible to test a newer Proton environment on one title while leaving your other games unchanged.
This is particularly useful when troubleshooting a Direct3D 12 game.
For example, you can keep your existing Proton version for games that already work correctly and select a newer release only for the title experiencing a graphics or compatibility problem.
Manually Replacing VKD3D-Proton Files
Advanced Linux users can replace the VKD3D-Proton components inside a Proton installation manually.
This approach is different from selecting a Proton version through Steam. Instead of changing the complete compatibility environment, you are modifying individual files.
Manual replacement can be useful when a specific VKD3D-Proton fix is available upstream but has not yet been included in the Proton build you are using.
However, the files must be compatible with the Proton environment. Mixing components from unrelated builds can result in crashes, failed launches, rendering problems, or other unexpected behavior.
For this reason, direct file replacement should generally be reserved for advanced testing.
Using a Custom Proton Build
A custom Proton build provides a more controlled alternative to manually replacing individual files.
Instead of modifying an existing Proton installation, a custom build gives you a separate compatibility environment that can be selected from Steam.
This is useful when you want to test newer compatibility changes without altering your normal Proton installation.
It also makes reverting easier. If the custom build does not work correctly, you can simply switch the game back to the previous Proton version.
Proton-GE for VKD3D-Proton Testing
Proton-GE is a community Proton distribution that includes additional patches and compatibility changes.
Depending on the release, it can contain changes that are not yet present in the standard Proton build you are using.
For this reason, it can be useful when investigating a game-specific compatibility issue.
However, using a custom Proton build should have a clear purpose. Installing a different build does not automatically mean the game will perform better, and different games can respond differently to compatibility changes.
When Manual Updating Is Useful
There are several situations where testing a newer VKD3D-Proton version makes sense.
A recently released Direct3D 12 game may have a compatibility problem that has already been addressed upstream. A particular graphics feature may also require an updated implementation.
Manual testing can also help determine whether a problem is connected to the Direct3D 12 translation layer.
If the same game works differently after switching to a newer Proton environment, that provides useful information for further troubleshooting.
If the game already works correctly, however, manually changing the underlying components usually provides little benefit.
How to Check Your Current Setup
Before changing anything, record the Proton version currently assigned to the game.
You can find this through the game’s Steam compatibility settings.
For more detailed troubleshooting, you may also need to determine which VKD3D-Proton version is included in that Proton build.
Keeping track of the original configuration makes it easier to compare results after an update.
It also gives you a clear rollback point if the new environment causes problems.
Test the New Version Properly
After switching Proton versions, test the same situation that caused the original problem.
If the issue involved graphics rendering, reproduce the same scene or effect. If it involved performance, compare the same game area with the same graphics settings.
Do not rely only on average FPS. Look for:
- Frame-time changes
- Stuttering
- Crashes
- Graphical artifacts
- Loading problems
- Stability
- Changes in GPU or CPU usage
A controlled comparison makes it easier to determine whether the new environment actually made a difference.
Can a Newer VKD3D-Proton Improve Performance?
It can, but there is no guarantee.
Newer releases can contain optimizations and fixes that improve performance in particular games. The result depends on the game, GPU, CPU, Vulkan driver, graphics settings, and workload.
A newer version may improve one game while producing almost no measurable difference in another.
Performance should therefore be compared rather than assumed.
Can Updating It Fix Game Crashes?
A newer VKD3D-Proton version can fix crashes caused by problems in the Direct3D 12 translation layer.
However, not every crash is related to VKD3D-Proton. The game itself, Proton, Vulkan, GPU drivers, or other system components can also cause instability.
If a newer Proton version does not change the problem, investigate those other components instead of repeatedly replacing VKD3D-Proton files.
Manual Changes May Be Overwritten
Directly modifying VKD3D-Proton files has an important limitation: Steam can update or replace the Proton installation.
If an update replaces the modified files, your manual VKD3D-Proton changes may disappear.
This makes direct modification less convenient for long-term use.
A separate custom Proton build avoids this problem by keeping the modified environment separate from the standard installation.
Common Mistakes to Avoid
One mistake is assuming that VKD3D-Proton can be updated independently through the Steam Library.
Another is copying files from a different Proton installation without checking compatibility.
It is also easy to make troubleshooting more difficult by changing several components simultaneously.
A better approach is to change one variable at a time. First test a newer Proton release. If that does not address the problem, investigate a custom build or a specific VKD3D-Proton change.
Always keep the previously working Proton version available so you can quickly revert if necessary.
A Practical Update Process
If you want to manually update or test VKD3D-Proton, follow a simple progression.
First, identify why you need the update. Then check whether a newer Proton release already contains the required change.
If it does, install that Proton version through Steam and assign it to the affected game.
If the required change is not available in the standard Proton releases, consider a suitable custom Proton build.
Only use direct VKD3D-Proton file replacement when you have a specific technical reason and understand the Proton installation you are modifying.
After every change, test the game against the original configuration.
When You Should Not Update Manually
If your games are working correctly, there is usually no reason to manually replace VKD3D-Proton.
The Proton environment is made up of several interconnected components. Changing one component without a specific objective can create compatibility problems that did not previously exist.
For normal Steam gaming, allowing Steam to manage Proton is the simpler option.
Manual updates are mainly useful for troubleshooting, testing newer fixes, or accessing changes that are not yet available in the Proton version you normally use.
Conclusion
You can manually update VKD3D-Proton while using Steam, but there is no standard standalone VKD3D-Proton update process inside Steam. Because it is included with Proton, the simplest method is to install a newer Proton release and select it for the affected game.
For more advanced testing, custom Proton builds can provide newer or modified components without changing your standard installation. Directly replacing VKD3D-Proton files is possible but carries more risk and can be overwritten by future Steam updates.
For most users, changing the Proton version on a per-game basis is the cleanest way to test a newer VKD3D-Proton environment.