Request of a download link for Unity3d Isaac sim for a long project

I’ve been working for 2 years with Unity3d Isaac sim and I managed to delete most of my project.
To restore the project I need the Unity3d Isaac sim (Today the omniverse occupied its place)
The problem is that the project took way too long to continue on the omniverse
Having a tar/zip of the Unity3d Isaac sim would help me a lot.
Due to the deprecation of unity3d which I am aware of I cannot manually find any link for such a sim.
I would really appreciate if you could somehow send me a link/backup of the Unity3d Isaac from the 2020 year or any which is available for the unity.
Thanks in advance

Hi Miker,

Sorry about this, but we no longer support the unity-based sim.