There is also Greenfoot[0], created by the authors of BlueJ, that focuses on building 2 dimensional simulations and games. I think Greenfoot is derived from the

There is also Greenfoot[0], created by the authors of BlueJ, that focuses on building 2 dimensional simulations and games. I think Greenfoot is derived from the same source as BlueJ. [0] https://www.greenfoot.org/ https://www.greenfoot.org/