On which OS did you try to run the game?
The game was made in java and I am using the game engine jME.
You suppose to see a screen like this when you run the exe:
Can you try to play around with the settings. Like uncheck the Gamma correction and change the resolution to something like 1280 x 720.
If that doesn't work, please can you run the game from the windowns command console and see what is the error that is printed in the console? Please send me the error if you don't mind?