Reaching and Exploring the Otherside Dimension

To enter the Otherside dimension, you first need to venture deep underground into the Deep Dark biome and locate a vanilla Ancient City. Bring plenty of wool blocks and sneak carefully to avoid triggering nearby sculk sensors and shriekers while you clear and secure the area.

Setting Up the Ancient City Portal

Head toward the central structure of the Ancient City, where reinforced deepslate generates naturally. The portal to the Otherside is built inside the Ancient City using reinforced deepslate blocks. Check your vanilla Advancements screen or recipe book once you enter the Deep Dark to confirm the activation steps required to open the gateway, then step through the completed portal to travel into the new world.

Navigating the New Terrain

Once you arrive in the Otherside, prepare for a dark environment lit mainly by ambient terrain features. You will cross glowing sculk terrain, dense formations of gloomslate stone, and giant fossils illuminated by an eerie blue glow. Mark a clear trail back to your portal immediately using bright blocks from the Overworld so you do not lose your exit in the darkness, and carry durable gear to fend off the monsters lurking in the shadows.