1. Up to 4 devices need to be connected to the same Wi-Fi network to play this mode. 
  2. The Host player needs to select “Multiplayer (same Wi-Fi)” after pressing Play. 
  3. Create or select a character and a universe before continuing in-game. 
  4. At this point, Players (once they’ve created or selected a character) can then join this game by selecting Join on the character selection screen.

In case your game doesn’t show up for other player, make sure to have the check mark on for “Visible To Other Players” in the Host Settings. This can be changed by tapping the little cogwheel button in the character selection.