There are several World Statuses used in EvoCrit to denote which characters, species, and projects are able to interact. This concept used to be referred to as "universe status" but it was changed to avoid confusion with some projects (e.g. CardTamers, an Inaccessible World project with multiple universes that can interact).
An Accessible World is one where the projects and species can interact with any other project, so long as no species/project rules are broken by the interaction.
A Restricted World is one where the projects and/or species can interact with any other project/species as long as certain requirements (such as obtaining an item or reaching a certain milestone) are met and no species/project rules are broken by the interaction.
An Isolated World is one where only a specified set of projects/species can interact with it.
An Inaccessible World is one where no other projects/species outside the project/species can interact with it.