Can't install via the itch app: TypeError: Cannot read property 'build' of undefined.
Regarding to the error, I have tested on the app, It works. Could you try to delete the game and re-install it or try downloading from the website, hope that helps!
It says I need microsoft visual C++ runtime and directx runtime.
This is because we used Unreal Engine which all of it's projects requires DirectX and C++ runtime. That's why you couldn't play it... :(