Pix TD is a cross-platform tower defense game developed in Java. The Java .JAR file launched without a problem when I double Clicked on it.
Description
A tower defense game developed in Java. Based on the famous concept from Warcraft 3 and inspired by VectorTD. Unlike other tower defense games out there here the players have the ability to build their own maze of towers and even create their own maps.
https://sourceforge.net/projects/pixtd/