I managed to get recent KSA builds working, however the process is a bit complicated.
Recent KSA updates seemingly broke any methods posted here, due to KSA using DrawIndex (which wasn’t supported until 2 days ago as of writing)
However, by replacing your MoltenVK with one built from the latest source code (as of May 29th 2026), it can now run the latest KSA version at the time of writing this! (don't worry, it's not as complicated as it sounds!)
I used Sikarugir, but other tools
may work.
What I did:
- Install Sikarugir
- Install the WS12WineSikarugir10.0_6 engine, download the latest wrapper template (I used 1.0.11) and create a new blank wrapper.
- Enable MoltenVK FastMath and disable MoltenVK (CodeWeavers version)
- Select the KSA installer in the Windows app selector
- Launch Test Run and install KSA as normal (don’t launch once installed, it will crash)
- Change the Windows app to the KSA.exe file created by the installer (default location "C:\Program Files\Kitten Space Agency\KSA.exe” )
Now for the tricky part, replacing/updating MoltenVK. You can get the version of MoltenVK I used from here:
MoltenVK-macos. (as of writing this is the latest official build I could find, this should work fine. Compiling yourself should work too)
- Find the file libMoltenVK.dylib in the zip file (usually in MoltenVK/dynamic/dylib/macOS/libMoltenVK.dylib ), and copy it.
- If using Sikarugir, find your wrapper’s file (for me it was in /Users/yourusername/Applications/Sikarugir ), and right click and select Show Package Contents, then navigate to MacOS/Frameworks, then paste the libMoltenVK.dylib from earlier, replacing the old file.
If you are not using Sikarugir, this process will not work, however it is theoretically possible to do the same for other tools.
If all goes well, KSA should launch without crashing instantly! I have not tested this for other systems, but would be glad to hear if anyone else is able to do this as it should work for just about everyone!
I have been getting intermittent crashes but it should be solvable with some settings changes.
This process worked for me on macOS 15.7.4 on an M4 max as of May 29th 2026.
Thank you to Kiwi Shark and the guide they made which helped point me in the right direction!