OpenBase

Seed Rater.

Hand the judge a seed, or roll the dice. It reads the world's own math within 2,048 blocks of spawn, every biome, every structure, the whole skyline, then scores the seed and tells you exactly why. The judgment rules and the personality live on this page: no cloud AI, no invented numbers, and the same seed always gets the same verdict.

The seed

±2,048 blocks

The scan runs in this page, in your browser. The verdict's link carries the seed, so you can share the whole judgment.

What the judge reads

  • 22%

    The start

    The spawn biome and its personality, the nearest village with a next-door bonus, the ruined portal plan, the slime chunk roll.

  • 22%

    Structures

    Sixteen landmark types counted and scored by distance inside the window: villages, strongholds, temples, shipwrecks, geodes and more.

  • 20%

    Biomes

    Distinct biome count, the ocean share, and the rare treats: mushroom fields, cherry groves, ice spikes and friends.

  • 22%

    Terrain

    The skyline's tallest block against sea level, the high-country share above y 120, and how wildly the land rises and falls.

  • 14%

    The nether

    The nearest bastion and its variant, the fortress, both measured from the honest portal estimate.

Five categories, one score out of 100, six tiers from cursed to legendary. The same seed always gets the same verdict: the personality is scripted, the numbers are measured.