I stumble upon an article on an interesting collision technique:
Speculative Contacts – a continuous collision engine
There is some nice live demo on this article.
In the past, I’ve implemented myself a 2D collision system. I used a classical discrete method and had stability issue.
If this technique is simple and stable I will use the algorithm on my next unity project.
I’ve bought the source code to thanks the author.
If you like it I advise you to do the same.