ALKEARI

Minecraft Mods

Genesis

See the world before you make it. Genesis puts a live biome map, seed tools and world pre-generation on the Create New World screen, so you can compare seeds and pre-build the terrain before you ever spawn in.

Nexus ModsModrinthCurseForge

What It Does

  • A biome map of the world you are about to create - opened from a GENESIS button on the Create New World screen, sampled from the real generator with your seed and every mod you have installed.
  • Readable in seconds - a coarse pass fills the layout immediately, then two finer passes complete the detail, sampling across as many as 16 background threads.
  • Fixed at Y = 320 - so cave biomes never bleed into the surface map.
  • Colored so you can actually read it - 16 biome families share a fill color, and every individual biome gets its own border color in the legend.
  • Modded biomes get real colors too - matched by registry name, then grass color, then a hash of the name, so nothing shows up as anonymous gray.
  • Pan, zoom and measure - drag to pan, scroll to zoom, NEAR, MID and FAR for fixed levels, with a scale bar, a live legend and a coordinate and biome readout under the cursor.
  • Seed tools where you need them - type a number or any text, RANDOM for a fresh one, COPY to the clipboard, R to reroll. Leaving the screen writes the seed back to Create New World for you.
  • Pre-generate before you play - set a radius and thread count and watch a progress bar with a chunk counter, a rolling ETA and the active dimension.
  • On your terms - PAUSE and RESUME without losing progress, CANCEL to stop, or ENTER WORLD to keep it running in the background.
  • A HUD while it runs - dimension, chunks, percentage and ETA at the top of the screen, amber while paused, gone when the job finishes.
  • Or drive it from commands - /genesis pregen by dimension or all, optionally centered on explicit coordinates, with cancel, pause, resume and status, plus /genesis info for the seed and generator.
  • A broken generator never takes the screen down - tiles that fail to sample are drawn neutral gray and the preview carries on.

Minecraft 1.21.1

Version1.1.1 for 1.21.1 (Fabric, NeoForge)
Released2026-09-04
On Nexus Mods1.1.1-1.21.1
On Modrinth1.1.1-1.21.1
On CurseForge1.1.1-1.21.1

Changelog for 1.21.1

v1.1.1-1.21.1 2026-09-04

  • Changed: The preview world screen title uses a plain hyphen instead of a long dash.
  • Changed: Map tiles you have not sampled yet use the standard dark background color.

Minecraft 1.20.1

Version1.1.1 for 1.20.1 (Fabric, Forge)
Released2026-09-04
On Modrinth1.1.1-1.20.1
On CurseForge1.1.1-1.20.1

Changelog for 1.20.1

v1.1.1-1.20.1 2026-09-04

  • Changed: The preview world screen title uses a plain hyphen instead of a long dash.
  • Changed: Map tiles you have not sampled yet use the standard dark background color.

Release data as JSON: /updates/genesis.json