Zennies ZENI has a Japanese name but it was created in Bulgaria. This is the first crypto to be entirely linked to the development of an arcade game. “Zeni” comes from what is called “coins” or “change” in Japan. Playing some of the wide spectra of games gets the participants the opportunity to gain with that currency on its own independent blockchain. The original website of the coin was launched in the spring of 2017, but it went down. The verification method of ZENI is pure Power of Stake using the Scrypt algorithm. 1 billion coins are the hard cap of the currency.