Mysterious Devices
Selene can use the remains of the ancient civilization that once ruled Atropos. You can find many different devices on Atropos: some may provide you items in exchange for Obolites, others will increase your max health or provide various state upgrades, and have many different outcomes that are worth experimenting with. There's even a Reconstructor that, when activated, will revive you at that location without losing the progress of that cycle. Always be mindful of using your obolites wisely though, as there are no refunds on Atropos.