But that ' s the joke <| sep |> Just start fresh all over . Improve your builds and everything else you feel could be . I do it every update . If it makes you feel better something similar happened to me , my world file got corrupted , but luckily I had a backup file . Turns out it was saved from over 4 months ago , so I lost every single item and build , which really sucked cause I just finished some really nice pixel art and other large builds the day prior , and every super rare item for my collection ? Gone . Every cool build I put weeks effort into ? Gone . There was nothing I could do about it at all . Don ' t really know if there ' s anything you can do other than cheat the stuff you lost back into the game . I recommend a restart and keep the world you use to play with strangers separate from the one you use for your main world . Also , save your files , if you have another file saved from before that player disrupted your world you can probably fix it , otherwise just learn from your mistake and realize no world lasts forever on almost any game , either you stop playing , something unfortunate happens , you change computers , the list goes on and on .