Environmental Rads is a NuclearCraft addon that adds configurable per-dimension passive radiation from the environment.

CurseForge Page (Recommended download location): https://www.curseforge.com/minecraft/mc-mods/environmental-rads

GitHub Page of NuclearCraft: https://github.com/turbodiesel4598/NuclearCraft

• Configurable per-dimension passive radiation from the environment.
• Configurable simulation of the absorption of environmental radiation by blocks with respect to their hardness.
• Configurable simulation of atmospheric absorption of radiation with configurable start and end heights, allowing for the realistic tapering of radiation received.
• Configurable per-block radiation absorption overrides.
• Configurable per-biome radiation level adjustments.

• Use in conjunction with a space exploration mod such as Galacticraft or Advanced Rocketry to improve realism and motivate the construction of shielded extraplanetary bases.
• Add to a custom map or alongside a mod that alters biome spawning to create a highly irradiated surface wasteland.
• Make skybases and high-altitude living more hazardous.

• Permit radiation level update cycles to differ in length and rate from the configured NuclearCraft radiation updates.
• Delay initial onset of radiation, per-player or globally, to create a grace period for players to prepare to burrow.
• Allow for the creation of radiation "cycles" - i.e. a certain number of days at a certain radiation level, another number of days at a different rad level, etc, on repeat.
• Optional radiation spillover from adjacent blocks on the x and z axes to make walls more important.
• Optional radiation checks from every world axis, not just from the sky (Very much a maybe, could be prohibitively performance-heavy).

I welcome all bug reports, questions, suggestions and pull requests.

tomdodd4598, for making NuclearCraft