Xaya (ticker: CHI) is a blockchain designed to support fully decentralized online games, although it can technically support other decentralized applications as well. It is the successor to Huntercoin and was founded by the same team in 2016, launching two years later. Notable games include Taurion and Soccer Manage Elite.
Xaya uses proof-of-work to achieve network consensus, and also borrows techniques from Huntercoin and Namecoin to track the world state of its games. Players issue transactions to the Xaya network that detail their moves; for real-time games, this may occur dozens of times per second.
This requires a very large number of transactions, one of the same issues which plagued Xaya's predecessor. Xaya therefore includes a variety of scalability features to solve the problem. Primary among them are game channels, which are analogous to Bitcoin's Lightning Network and prevent most transactions from needing to be included on the blockchain. Instead, it is typically just the final results of a match that need to be included, similar to settling the tab in a Lightning channel.