How to Locate and Open the Prehistoric Time Rift

Scouting the Laboratory

To initiate the prehistoric invasion, you must first locate a breach facility in your world. Explore plains or desert biomes while watching for a rare pyramid laboratory structure constructed from deepslate and rusted copper. Because the breach unleashes dangerous hostile creatures, ensure that any nearby towns or vulnerable bases are well outside the immediate area before proceeding.

Activating the Rift Mechanism

Once you discover the pyramid, head inside to prepare the rift sequence:

1. Enter the facility and explore the interior to find the central activation chamber.

2. Locate the specific target block positioned directly between two signs.

3. Ensure your armor, weapons, and healing items are ready on your hotbar, as opening the rift triggers immediate danger.

4. Apply redstone to the marked target block (such as by placing a redstone torch, a lever, or a powered redstone line directly against it).

Activating the block tears open the time rift. This starts an escalating prehistoric event, causing multiplying prehistoric plants to take root and summoning waves of aggressive ancient creatures into the surrounding environment.