Crimson is the Nether realm in my vision as a challenge, A place with more difficult challenges than the current Minecraft nether, With beasts roaming and killing those unwanted in the realm, There are some settlements within the realm but they live in the shadow of the gargantuan titans and other monsters that roam the realm. Most settlements live in caves where they don't have to worry about the monsters outside but like the Titans, the tribes also don't take kindly to unknown visitors.