Windows 10 (?)
Nothing happens when double-clicking the .exe file. I also tried starting it via console, (just in case), which had the same result.
Really weird. Just to make sure I didn't do anything too stupid, you did get the .exe, not the .x86_64, right? Because I've accidentally mixed them up in the past, and I develop on a Linux box so I might not see that
Also, is it in the same folder as the .pck file? Because it does need that to run. All of the files should be in the same directory together or it won't be able to start.
I just tested the Windows version, and it took a moment but it did start. The window was initially gray, then you get the Godot logo (as I don't usually turn it off), and then the world, paused. I suspect that first-run delay is mostly from Vulkan shaders compiling, but am not totally sure. If you can't get it going, I suppose I can try to export a WebGL version at some point.