instead of
java jar-

use
java -jar

Apologies, my memory is not as good as it used to be... Almost beat the game, you should add a difficulty meter to help those not as fortunate.

Game looks awesome mate. However, on start-up, Delver cannot find the main class. Any help?

Code:

C:\Users\(Blanked for Privacy)\Desktop>java jar- delver.jar
Exception in thread "main" java.lang.NoClassDefFoundError: jar-
Caused by: java.lang.ClassNotFoundException: jar-
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: jar-.  Program will exit.