I have some seeds from some old worlds I want to see again, is there a mod that allows the ability to create alpha worlds with seeds or would it be possible to make a world blank but with the seed so that when the world is loaded it generates the world with seed using the generation type of that version?


Here is how you can make a world with a custom seed in Minecraft Alpha, before you could change the seed in-game

  1. Start Minecraft Alpha by changing the version in the Minecraft Launcher
  2. Create any world, and save and exit Minecraft
  3. Use NBTedit to open level.dat found in the saves/ folder of .minecraft
  4. Open Data/RandomSeed and change this to your seed you want
  5. Delete all the chunk files
  6. Open the world in Minecraft again

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