Playing Supreme Commander 2, it made me remember IC2 because the main resources in there is Matter (Which you can only get from specified place in the world map), and energy.
So i thought, why not make some Raw UU-Matter pools spawn naturally in the world (Far away from the Initial Spawn point, maybe 300-400 blocks away), and a new machine capable of extracting the matter out of these pools, of course the process requires quite a bit of energy, Time and advanced machinery to draw the matter from the pool. These pools are not infinite but they are indeed a bit extensive. That would cover the purpose the Matter extractor had in that game.
But it also had a second matter generation machine, called the Matter Converter and it actually does what the Mass Fabricator does, Generates matter out of nowhere by using extensive amounts of energy, and i bring this because i want to make a change to that machine, Mass fabricator still needs a lot of energy to work, but its functionality would be converting the ENTIRE Chunk its on in a big Matter Pool, only iridium coated machinery and blocks will be immune to the effect of the mass fabricator, the mass fabricator will too change the biome type to a new dangerous biome where it will destroy anything that isn't iridium coated (Including you the player if you aren't in full Iridium Armor). As an added bonus, you could make it so once the Mass Fabricator its placed and activated in the chunk, it cannot be removed by any means and trying to do so will trigger a chunk wide nuclear explosion that will destroy any UU-Matter block generated in the chunk (This explosion cannot be contained by any means). Also no EU to the mass fabricator = no Block conversion to UU-Matter blocks in the chunk.
What i want in a easy to understand Nut:
-(New Block) UU-Matter blocks that spawn naturally in the world after 200-300 blocks away from spawn, in pockets underground and possibly in slime spawning chunks only (Not every slime chunk will have one).
-(New Machine) Mass Extractor, it will work like a miner but it can only extract UU-Matter Blocks. Needs a moderate amount of time/EU per UU-Matter block and only gives 2-4 UU-Matter per block.
-(Machine Change) Mass Fabricator -> Mass Converter, It consumes a lot of energy to transform the Biome of the chunk into "Unstable Matter Vortex" when activated at first. As long as its powered it will convert any Block in the Chunk to UU-Matter Blocks. If removed or destroyed it will generate a Chunk Wide explosion that will destroy every UU-Matter Block in the chunk, Biome change will stay as a negative impact of using the Converter. Its recipe should include Iridium.
-(New Biome) Unstable Matter Vortex, the activation of the Mass Converter made the area around completely unstable disassembling everything at a molecular level and spraying the atoms into the air around. Anything in the area will be completely destroyed unless its coated with Iridium, the only material that can resist the molecular disassembling process (Too much shenanigans that i don't know to give a theory about it). Players must use the iridium armor to survive in this biome, machines should be coated with iridium either with a new tool post placing, or new types of machine made with iridium machine blocks.
-(New Block/Machine) Matter Stabilizer, this machine will prevent the activation of a Mass Converter in the chunk its placed in. Due to the inability to coat this machine with iridium (Blocking its operations in the Unstable Matter Vortex), this can only be used to prevent and not to correct the activation of a mass converter. The machine can be configured outside of the game (Whatever that means) to be cheap (No energy requirements, cheap recipe for early and plentiful crafting.) to prevent griefing or Expensive (Energy Requirements, Expensive recipe on par with the Mass converter minus iridium) if the server accept the creation of unstable matter vortex biome as a viable "Mass Destruction Weapon".
-(New Mechanic or Machine Changes) Iridium Coating OR new Iridium tier machines/blocks, to be able to place these in the Unstable Matter Biome, the coating would make the machine works as they normally do, but if a new tier is added for the machines, then they can receive any kind of upgrade you think its acceptable (Or none at all).