Last Light: Underground

The sun is no longer safe.

A spreading radiation storm is turning the surface into a deadly wasteland. Daylight burns, the air above is poisoned, and the radiation does not stay still — it spreads, worsens, and grows more dangerous over time. What may seem survivable today could become lethal tomorrow.

Your only refuge lies deep beneath the earth.

Last Light: Underground is a cave-focused survival modpack built around exploration, atmosphere, leveling, and underground progression. Descend into massive cave systems filled with new biomes, creatures, structures, and threats while the world above becomes increasingly hostile. Resources will help you survive the caves. The darkness is alive, and every journey deeper into the stone may be your only chance to outlast the spreading radiation before the sun sets for the last time.

Features

-🌑 Underground survival focus – live, build, and progress below the surface
-☢️ Progressive radiation system – the surface becomes more dangerous as time passes
-🪨 Expanded cave biomes and worldgen for a rich subterranean world
-👁 New mobs and dangers lurking in the darkness
-🔦 Atmospheric exploration with immersive sounds and environments
-⚙️ Balanced progression designed for long-term underground survival
Toggle From the Caves mod for a more scary time!
/fromthecaves setphase [1-3] – Set the current phase manually
/fromthecaves phase – Check the current phase
/fromthecaves warnphase [true/false] – Enable or disable phase warnings
/fromthecaves photosensitiveMode – Toggle flashing light effects

The surface is dying.
The radiation is spreading.
The caves are your last hope.

How deep will you go to survive?

Last Light Underground