Download of mjbWorld 0.15 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following versions: 5.2 and 0.1 are the most frequently downloaded ones by the program users.
The actual developer of the free program is Martin John Baker. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. MjbWorld lies within Photo & Graphics Tools, more precisely 3D Design.
From the developer:
This Program is a general purpose 3D editor which allows you to create 3D worlds by graphically selecting and dragging objects on the screen. There are two versions of the program, one written in Java and the other written in managed C (.NET). Although the two versions are not linked, they use a similar structure and user interface.
You may want to check out more software, such as BabyaCAD, which might be related to mjbWorld.