If the player walks near a companion, both Travelers' scarves are rejuvenated. The experience of the companion can also identified by their robe, since each time the game is completed the player's robe gains a design. Some elements, such as Ancient Glyphs, can be found by a companion but will still count for your trophies. You can receive the Reflection trophy by meditating for 20 seconds with a fellow companion. (To meditate, push Select, Start, or don't touch the controller for 40 seconds.)
During the game, the players can communicate with each other by the use of visual and sound cues that each player can create. Also, at some points in the game the user can draw in the sand to transmit a message.
Once the game is completed, there will be a list shown of all the companions you met throughout your playthrough.
- No companions may be joined before completing The Beginning.