Nether Portal Spread Mod FAQ
10 questions players actually ask, answered.
How do I stop a Nether portal from spreading in my world?
Place four coal blocks within the portal's spread radius to halt the Nether transformation around that specific portal. This is the mod's built-in way to freeze the spread without disabling the mod entirely.
Can I turn off Nether portal spread completely?
Yes, the config file lets you disable the spread mechanic or set the radius to zero so portals spawn without transforming surrounding terrain. You can also reduce spawn frequency if you only want fewer portals.
How do I change how far the Nether blocks spread from a portal?
Open the mod's config file and adjust the spread radius value, which defaults to 15 blocks. Lower numbers keep the Nether corruption tight around the portal; higher numbers let it reach further into your terrain.
Why is my base getting covered in Netherrack and Soul Sand?
A Nether portal spawned or was created near your base, and its spread radius is transforming nearby grass, dirt, and trees into Nether blocks. Place four coal blocks within that radius to stop it, or move the portal away from your build.
Do portals spawn automatically or only when I make them?
The mod adds random Nether portal generation to the Overworld, so portals can appear on their own across biomes. It also detects portals you create yourself or when you travel from the Nether back to the Overworld.
How do I reduce how often portals spawn in the Overworld?
Adjust the spawn frequency setting in the config file to make random portals generate less often. Setting it low keeps the world closer to vanilla while still allowing occasional portals.
Will the spread destroy my chests, machines, or other modded blocks?
The spread mainly replaces natural Overworld terrain like grass, dirt, and trees with Nether blocks such as Netherrack, Soul Sand, and Nether Wart. It is not designed to eat through storage or machinery, but keeping portals away from builds is still the safest approach.
How do I know when a portal has started spreading?
The mod sends you a notification when a portal is detected and begins transforming the area around it. If you see Nether blocks creeping outward, that portal is active and can be stopped with four coal blocks in range.
Does this mod work with other Nether or dimension mods?
It generally coexists with other mods since it only adds portal generation and block transformation, but overlapping dimension mods may cause unexpected portal placement. If you see conflicts, tune the spawn frequency or radius down in the config.
Will having many portals and spread active hurt my game's performance?
Each portal only transforms blocks within a small radius, so performance impact is usually minor. If you notice lag, reducing the spread radius and spawn frequency in the config lowers the number of block changes happening at once.