Final Fantasy: Crystal Chronicles allows cross-play between 4 platforms

Supported crossplay platforms
Release Date: Aug 8, 2003
Summary:
Join a crystal caravan! A deadly miasma has swallowed the land, and it's up to you to hold it at bay! Many dangers lie along your journey, but you need not face them alone. Enlist your friends in a crystal caravan and make your mark together in the Crystal Chronicles!
Supported crossplay platforms:
Final Fantasy: Crystal Chronicles is supporting cross-play across multiple platforms. Currently it is possible to play together with your friends on Playstation 4, Nintendo Switch, Android and iOS.
Final Fantasy: Crystal Chronicles is also known as:
  • FFCC
  • Little King: My Life as a King
  • Crystal Chronicles
Supported game modes:
  • Single player
  • Multiplayer
Supported player perspectives:
  • Bird view
  • Side view