Web3.0 Storage for the Metaverse.
It's a network where anyone can contribute their computer storage for lease. It's not a unique idea as there are several similar providers, but it still makes sense. Crust also adds lots of new technologies like Meaningful POW, which apparently uses the miner's work meaningfully (to asses storage quality and other things). Their whitepaper is fantastic. One of the best I've read so far. They really go into detail and explain their multiple technologies in a way that's quite easily understandable.
They also have an ambitious roadmap to also include decentralized computing in the future.
Thus, starting from the decentralized storage, Crust makes possible the seamless transition from its current situation to an entire stack of technologies of “Activating Layer (consensus) +NetworkLayer + Persistence Layer (storage) + Application Layer (computing).” Show Less