: This specific part contains the initial data required to begin the extraction process. To successfully access the contents, you must have all related parts (part1, part2, etc.) in the same folder before extracting. About Model Builder (v1.1.x)
Model Builder is a digital hobby simulation that allows users to assemble, customize, and display virtual models. :
: This version was part of the early post-launch update cycle. Modern versions have addressed common early bugs such as workbench interaction issues and save/load errors. Technical Usage Notes