In 困难模式, the spread of Crimson converts ordinary Stone blocks into Crimstone. Crimstone itself also spreads Crimson to susceptible blocks nearby.
Unlike its 腐化 counterpart (Ebonstone), Crimstone can't be used to make 砖s. Instead, it can be crafted into 血肉块s at a 绞肉机, which can then be crafted into 家具 (neither Ebonstone nor 黑檀石砖 can be used to craft furniture).
- "Crimstone" is a portmanteau of the words "Crimson" and "Stone."