And some sort of extension of BlueJ is Greenfoot [1]: It is an "IDE" for making simple games using a really simple API[2]. I used it in school for making a gam

And some sort of extension of BlueJ is Greenfoot [1]: It is an "IDE" for making simple games using a really simple API[2]. I used it in school for making a game during my A-Levels for my scientific seminar (W-Seminar in german). While the concept is good, the editor is really not that good for anything bigger. You e.g. have no package support in Greenfoot (Or I was not able to find it), and e.g. if you restart a so called "scenario", the JVM does not get reset. Sure I did maybe go to the limits of Greenfoot with my game, but nevertheless it was really fun to work with [1] https://greenfoot.org/door https://greenfoot.org/door [2] https://greenfoot.org/files/javadoc/ https://greenfoot.org/files/javadoc/