When reporting issues like this, please tell me what OS you're trying to play it on (and which zip file did you download). Have you tried running it using the Itch Desktop App? Can you try running the executable via command line to see if any errors are printed out in there? I need more information in order to try and help.
Actually, if you have the itch app installed, try this:
Open the MewnBase page in the app. You should see the red "Launch" button, "Uninstall" options etc on the right side of the screen.
Near the bottom one of the buttons should say "Version 0.30 (mewnbase-win32.zip)" -- Right click on that, should open a little context menu -> Advanced -> View Logs...
Email me the contents to cairn4games@gmail.com - and I'll take a look asap to see what might be going on.
Thanks
Thanks! Main symptom of the issue looks like it's here, near the bottom of that log file:
err: Exception in thread "LWJGL Application" com.badlogic.gdx.utils.GdxRuntimeException: OpenGL is not supported by the video driver.
[2017-01-23 @ 15:24:10.262] [tasks/launch/native] err: at com.badlogic.gdx.backends.lwjgl.LwjglGraphics.createDisplayPixelFormat(LwjglGraphics.java:322)
A quick search recommends a couple things:
Try just giving your machine a reboot, and run the game again.
Try updating your video card drivers in Windows.
There's also a few posts on StackOverflow that suggest allowing the game to run in SoftwareOpenGL mode - In a couple hours, I can put that into a quick build and email it over to you so you can see if it works for you.