Enable it on the hosted world
The supplied materials describe crossplay as a world option chosen when loading a multiplayer world. Crossplay worlds appear in the world browser, and the host can decide whether to enable the option each time.
Joining friends
Use the host’s invite information or find the eligible world through the browser. Confirm that every player is attempting to join the same world and is running the matching game version.
Dedicated-server support
The launch material states that dedicated servers also have a crossplay option. Check the current server configuration before assuming a server is discoverable across platforms.
Source note
This independent guide is an original editorial summary of the supplied research material. It does not reproduce third-party site copy, branding, icons, navigation, referral links, or unsupported claims. Verify live prices, requirements, and patch-sensitive details with the relevant official store or Jagex announcement.
