It's an exciting time in the world of Splinterlands! The SPS Validator network has just launched, marking a huge step forward on the path to decentralizing the game. You can think of this network as a type of Hive-based sidechain for Splinterlands transactions, in much the same way that Hive Engine runs a sidechain to add smart contract capabilities to Hive. The nodes on this network are called validators, and initially they are being used to validate SPS related transactions. Eventually, you can imagine the validators being expanded to cover all sorts of other game transactions as well, until we someday reach the Holy Grail of complete decentralization for Splinterlands game services.