PC NEWS: 184.108.40.206 update is out! More info here. Report bugs here
CONSOLE 1.4 NEWS: The current plan is to have Terraria: Journey's End out for Xbox and PlayStation in Q3 2021 (Jul-Sep). Switch will follow shortly afterwards. More info here. Stay up to date with console news here
MOBILE NEWS: Stay up to date with the latest mobile news here. Report mobile bugs here
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You may installed terraria again without save, if no then you can't do anything, however if you remember whats your equipment and your friends one, you could get the items from map or inventory editor and beat WoF.