Fire rain will scorch the ground, and healing liquid will turn sticky slime into a useful healing agent. Affect the world around you by changing tile composition through liquids.A massive sprawling eldritch dungeon with numerous bosses.Create hundreds of new armors, weapons and tools.It's 3 years in now, and quite encompassing. Perhaps the largest of the mods for Starbound, FrackinUniverse combines new biomes, a hugely increased crafting system, science, monsters, tiles and hundreds of other assets to the game. Be sure to back up your universe before installing (Steam\SteamApps\common\Starbound\storage). FU will affect your game universe and ALL characters.
Disclaimer: Installing FU is a one-way trip.