The homepage says "The open-source engine" but I can't find a link to the source code anywhere on the site. The link that says "Download" is a link to some Wind

The homepage says "The open-source engine" but I can't find a link to the source code anywhere on the site. The link that says "Download" is a link to some Windows binary. Edit: https://github.com/TombEngine/TombEngine https://github.com/TombEngine/TombEngine that seems to be the code.