Downloading Code3D 3.0.5 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The following version: 3.0 is the most frequently downloaded one by the program users. This free program is an intellectual property of code3d. The software is included in Games. Code3D.exe is the common file name to indicate the Code3D installer. We recommend checking the downloaded files with any free antivirus.
From the developer:
Code3D lets you view and create 3D scenes.
You may want to check out more software, such as SimNation, CyberPony or RailDriver for TRS2004, which might be related to Code3D.