Crucible is a high-pressure planet with a crafting chain built around creating metallic hydrogen.
Mods introducing new content into the game.
New places to build more factories.
Transportation of the player, be it vehicles or teleporters.
Armors or armor equipment.
Map generation and terrain modification.
New Ores and resources as well as machines.
Things related to oil and other fluids.
Furnaces, assembling machines, production chains.
Compression science pack from planet Arig is part of the science productivity research, yet it doesn't have science pack productivity infinite tech for it.
This is fixed (along with a few other science packs) for v0.5.2.
Thank you very much.