Modeler/MacOS 0.9 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free software for Mac OS X is a product of Richard F. Bannister. The application belongs to Games.
From the developer:
Modeler/MacOS supports the three Sega arcade boards based on the NEC V60 CPU - Sega System 32, Sega System 32 Multi, and Sega Model 1. While the Model 1 games are currently not playable, due to the lack of 3D graphics emulation, the System 32 games work quite well. Titles such as Golden Axe 2 and Spiderman are fully playable, provided you have a fast enough Mac.
You may want to check out more software for Mac, such as Labyrinthus X, iDistract or JourneyMaker, which might be related to Modeler/MacOS.