A mod that Adds Corrupted Magic, items ,tools, armor, weapons, biomes, dimensions, new ore tiers, new structures, and a lot more to discover it and explore it may take a while to figure out the puzzle, and it won't be easy but you can get there, but be aware of the slowly spreading corruption, there is a way to get rid of it, if you can find it, and find the story behind it, and most of these things are late game.
