Yes. Ironsworn is designed to be run either split or co-op without a GM (although it does have additional bits if you want to run with a GM). I recently just started my first game - haven’t gotten very far into it, though.

If you want something simple, you could try Peril in Pinebrook. It was designed to be used in schools to teach kids to play. It uses a much simplified set of rules and pre-generated characters. I’m going to be using it with my family in a few weeks