Ryo is one of the very few cryptonote currencies that does actual, rapid development. Its team is led by fireice_uk and psychocrypt, who are the developers of xmr-stak mining software and the cryptonight-heavy algo which has been used by several Cryptonote projects and pioneered first in industry floating to introduce new PoW algo Cryptonight-GPU. Another lead developer - mosu_forge introduced the first GUI Wallet with SOLO mining features among any Cryptonote projects.
Total supply of RYO is 88.188.888 coins in 20 years and then 263.000 coins each year for inflation. Block reward is adjusted every 6 months.