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CRIMSON SHADOWS – Twisting paths through the vermillion foliage will bring you to the brink of vast chasms and lead you through ruins of old. There is a strange beauty here, but never forget that even one wrong step could lead to your doom.
— In-game description
The Crimson Forest may bloom in the dark of the Nether, but dangerous creatures thrive in this oppressive gloom! Between vast chasms that split underfoot and the ancient ruins that break through the trees, you should watch every step in these woods, lest it be your last.