I seem to be having the same issue that RobotLord10 was.
On Windows 10; tried with the standard, Java, and win32 zip files; none worked. Nothing happens at all after double-clicking the exe (or the Java executable). Attempting to run from the command prompt, as suggested, returns no message whatsoever.
I also attempted to install it through the itch app (both standard and win32). When launching through that, clicking the launch button, and the 'play now' button in itch's mini-launcher, I briefly see 'running' in place of the launch button... for less than a second. Then it goes back to showing the launch button, as though nothing had happened.
Itch didn't return an error message during this process, and no log files were apparently generated in the unzipped mewnbase directories. However, the view logs function in itch did give me some errors; have a pastebin of the log: http://pastebin.com/j8Yeg2ye
Hope that helps!
EDIT: Nevermind, figured it out, and got the game to run. As the log file implied, it was a driver issue. The short version was that I needed to update my graphics driver. The long version is that I needed to do that because Windows 10 likes to randomly and silently downgrade your graphics driver during its update process... and the way it does that incidentally disables NVIDIA's own driver update app. This is an ongoing, and recurring Windows 10 issue, though I may have figured out how to stop it from doing that, this time.
That said, it'd have helped me troubleshoot if your game were able to notice the driver issue and give me an error message upfront, instead of dying quietly.