In Java Edition, the chance of a bastion generating instead of a fortress is 3⁄ 5 (60%), while in Bedrock Edition the chance of a bastion generating instead of a fortress is 2⁄ 3 (66.6%). Two structures never generate in the same region, although they might overlap if they generate close to the separation border. This leaves only a 368×368 block section in Java Edition or 416×416 block section in Bedrock Edition where a structure can generate. Each region has a 4-chunk separation located on the south and east borders of the region in which neither a fortress nor a bastion can generate. The regions are 432×432 blocks in Java Edition and 480×480 blocks in Bedrock Edition.
To generate the structure, the game splits the Nether into regions, in which either a nether fortress or a bastion remnant can generate. If a bastion tries to generate in a basalt delta, the bastion does not generate, leaving the region empty. Green is where they can generate and red is where they cannot.īastion remnants generate in all Nether biomes except basalt deltas, although a bastion may extend into one. The black lines represent each region and the dots represent coordinates. Nether structure generation in Bedrock Edition. Green is where they can generate and red is where they cannot.
Nether structure generation in Java Edition.
