A minimalistic digital logic simulator · By Sebastian Lague
When I try to create a new project ALL the circuits are gone
All chips and circuits are part of a project - you're better off setting up a "Template" project to copy from as a new project if that's what your aiming for.
How do I create a Template project?
Create a project, set up whatever chips you want in it and save.
Go to "open project" select that project and press "Duplicate" - you now have a copy of your "Template" project.