Yammies are the central characters of the Yammiverse. They are ant-like creatures that inhabit the world of Colonysia.
There are nine different classes of Yammies in the genesis series, with each Yammie starting as a worker. The only way to increase the rank of Yammies is to merge two Yammie NFTs together (burning two NFTs to receive a new, improved NFT)
There is a fixed limit on the amount of Yammies that can inhabit the world, giving Yammies a deflationary mechanic. The more people merge their Yammies to create stronger Yammies the rarer that each Yammie becomes.
Each Yammie has unique combination of abilities, stats progression and artwork.