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Discovering Rainbow Island in Slime Rancher 2 offers many exciting surprises. You’ll learn about the island’s mysteries and gather dozens of unique slimes to mix into new Largos. One prime location to find slimes is the Grey Labyrinth, if you can locate it.
Unlocking this late-game area takes patience, time, and a good understanding of slime behaviors. Here’s everything you need to unlock the Grey Labyrinth doors. Stay alert once you’re inside, as much of what’s hidden remains just out of reach until now.
Where to Find the Grey Labyrinth Entrance
You won’t discover the Grey Labyrinth unless you’ve been reading the various G.G. logs found on the fallen Quantum Drones scattered around Rainbow Island. Its secret doors are buried in caves behind Gordo slimes in both the Starlight Strand and Ember Valley.
In Ember Valley, you must feed the Boom Gordo slime about 50 different types of meat to make it burst. When it explodes, it releases 12 smaller Boom Slimes, revealing an entrance to the cave behind it—an entry to the Grey Labyrinth.
In the Starlight Strand, gather roughly 30 Nectar from around the Flutter Slimes’ habitat. Feed this Nectar to the nearby large Flutter Gordo slime at the crumbling wall, causing it to explode into a dozen smaller Flutter Slimes. Drop through the hole and continue forward to find the second entrance to the Grey Labyrinth.
Both entrances are blocked by a mechanism that’s interrupted. To open them, you need to repair the connection. But how?
How to Open the Grey Labyrinth Doors
Head back to the Conservatory and check the Comm Station often. Focus on talking to Vikor, as he’s been speaking with someone who knows about the Grey Labyrinth. After a few chats, Vikor will give you the blueprints for the Radiant Projector. You’ll need to craft four of these to open both doors.
Gather these materials to build the projectors in the lab beneath the Conservatory:
– 2,000 Newbucks
– 40 Hunter Plorts
– 40 Boom Plorts
– 20 Silky Sand
– 20 Lava Dust
Once you’ve made all four Radiant Projectors, go to the Grey Labyrinth door and open the editing menu. Place the first projector near the golden slime light along the wall; aim its beam toward the other side of the room where the second projector will go.
Use the second projector to angle the beam at the triangle-shaped buttons located by the door. This puzzle solution unlocks the portal to the Grey Labyrinth. It’s best to return to the Conservatory afterward to deposit any items in your Vac Tanks.
You might also want to craft extra Refinery Hubs or portals before heading in. These additions can help you access areas that are only available at certain times or make it easier to return quickly since the Grey Labyrinth is a vast, separate map, larger than Rainbow Island itself.
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