In Terraria, how to use two people on the same screen in the PC version of Terraria, you can refer to the following:
1. Enter the game and select multiplayer game.
2. Choose the second one to join through steam.
3. Then ask your friend to open Terraria, press tab shift to display the friend interface, and right-click the avatar to send a link to your friend.
4. If you want to play with strangers, you can choose the first or third person to play. The first one requires an address and password and will join other people's games.
5. The third one allows others to join your game. The invited people and your friends can enter and set a password.
