Hi Dave, Yes, the project is still active! We moved away from SourceForge. Now, the project can be found on GitHub here: https://github.com/LBT-CNRS/UnityMol-Releases As a matter of fact, we just released a new version few days ago. We have also a new website: https://unity.mol3d.tech/ I'm not sure the project is compatible with Unity 6.X. Right now, we are on Unity 2021. I need to try with more recent Unity version. Hopefully, we will support Unity 6.X in the next release. Cheers, Hubert