Click the attach mouse button with your desired mouse.On the Lock mouse? menu, select Yes if this is the LAST window you are setting up.Next, hold any three keys on your desired keyboard.I would recommend setting up the gamepad windows first, then the keyboards+mice If you want to use a keyboard+mouse instead of a gamepad, select NONE as the gamepad index and click OK.(If one player wants to use a keyboard+mouse, select NONE). On each window, click Next as many times as you need to change its gamepad.On the other windows, go to Multiplayer -> Join via IP -> Select a character -> Enter localhost as the IP and 7777 as the port.
C:\Program Files (x86)\Steam\steamapps\common\Terraria and launch Terraria.exe as many times as you need
