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  1. Minecraft: Java Edition
  2. MC-236650

Minecraft in 1.18 has 2^48 seeds instead of 2^64 seeds.

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Fixed
    • Affects Version/s: 21w37a, 21w38a, 21w39a, 21w40a
    • Fix Version/s: 21w41a
    • Labels:
      None
    • Confirmation Status:
      Community Consensus
    • Category:
      World generation
    • Mojang Priority:
      Normal

      Description

      Minecraft loses 18,446,462,598,732,840,960 seeds, resulting a total of 281,474,976,710,656 seeds, for 1.18. Here are the seeds and screenshots of these happenings.

      Seed 1 - original

      Seed 281474976710657 - almost identical, though different tree locations and biome boundaries.

      Seed -7379792620528906220 - different biomes and expected shadow seed

      Expected result: It should have 2^64 seeds, edit: including shadow seeds.

      Observed result: It has 2^48 seeds.

       

        Attachments

        1. seed-0.png
          seed-0.png
          4.04 MB
        2. seed-1-1-18.png
          seed-1-1-18.png
          3.44 MB
        3. seed-2-48.png
          seed-2-48.png
          3.79 MB
        4. seed-2power48plus1-1-18.png
          seed-2power48plus1-1-18.png
          3.06 MB
        5. seed-expected-shadow.png
          seed-expected-shadow.png
          3.82 MB
        6. seeds.png
          seeds.png
          1.00 MB
        7. seeds2.png
          seeds2.png
          775 kB
        8. shadow-seed-expected-1-18.png
          shadow-seed-expected-1-18.png
          2.15 MB

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              Assignee:
              Unassigned Unassigned
              Reporter:
              SwartyNine2691 Alec Parungao
              Votes:
              75 Vote for this issue
              Watchers:
              42 Start watching this issue

                Dates

                Created:
                Updated:
                Resolved:
                CHK: