Tricky Trials
Adds underground Trial Chambers and related content — new structure placement influences seeds.
Explore the timeline of world-generation epochs in Minecraft Bedrock. Each epoch spans a range of Bedrock versions where seed outcomes and terrain generation remain broadly consistent. Major updates to terrain, biomes, structures, and world height mark the beginning of new epochs. This community-sourced classification helps players identify which seeds remain compatible between versions.
An epoch is a period of time where Minecraft’s world-generation algorithm stays stable.
Whenever Mojang makes a significant change to terrain noise, biome distribution, or structure placement, a new epoch begins. Seeds created within the same epoch will always generate identical worlds, while seeds between epochs will produce entirely new landscapes—even if the seed number is the same.
Each epoch entry below explains what changed and links directly to the game versions it covers. This helps players understand which seeds remain compatible and how world-generation evolved across updates.
Adds underground Trial Chambers and related content — new structure placement influences seeds.
Archaeology and trail ruins; Cherry Grove — localized seed effects.
Deep Dark & Mangrove Swamp; Ancient Cities — biome/structure placements shift.
Height range expanded (-64..320), new noise, huge caves and lofty mountains — major seed reset.
Part 1 content lands without terrain rewrite — seeds largely stable ahead of 1.18.
Nether biomes/structures overhaul; overworld terrain unchanged, nether seed experience changes significantly.
Bees and honey; minor world-gen impact — overworld seeds broadly stable vs Village & Pillage.
Villages regenerate with biome-specific layouts; pillager outposts added — structure placement differs across seeds.
Ocean overhaul with temperature-based oceans, structures and mobs — coastal/ocean seeds change materially.
Baseline Bedrock worldgen; End added (1.0) but overworld biomes/terrain largely consistent through 1.2.