Starbound library mod.
Though initially named after its Terraria-like features, it's more than that now.
terraliblite - The core part of TerraLib. Included in both TerraLib and TerraLib Lite on the workshop.
terralib - Included in TerraLib only. Contains non-vanilla-compatible components of TerraLib.
wormlib - Included in both TerraLib and TerraLib Lite. Exists for backwards compatibility purposes. Is literally just a _metadata.