This is a blockchain of games based on this technology, in addition to games other services can be added since it is totally open. Architecture in general using distributed smart contracts.
It is highly scalable but still in development, currently its exchange from etherium chain to its own main chain is complete. I believe that their current obstacle is the community that supports them since it is small in its different formats and interaction services.
Currently there are other currencies in this same market and they have not been successful.