Outwardly, the world looks like huge caves with passages between them, you can climb higher and lower, explore the caves in search of new ores. The world has its own biomes with diverse fauna, including an adapted forest. There is constant darkness in the world, but different plants emit light.
The author of the mod did a good job on the sounds, the background noise of the measurement, the sounds of mobs, all this together with the picture makes the world incredibly creepy and atmospheric.
The world is inhabited by its own mobs, some of them are aggressive, some are neutral, there is also their own boss. Mobs have creepy, but high-quality and interesting models, their own animations, unique sounds.
The world will offer you many new blocks, new ores from which you can create armor, tools, and weapons associated with this dimension.
To get into the world:
Craft a catalyst and frame with stone bricks, activate the portal: