The Fifth Competition of Etherspace just started,(http://etherplay.io/game/etherspace)
You need to have ether(ethereum cryptocurrency) in order to play in our platform Etherplay.
About Ethereum here:
Ethereum The World Computer:
About Etherplay:
Our goal is to bring back the playful and exciting feeling of arcade game competition on the web. By using Ethereum, we have created a transparent platform with which our player can be assured that the highscores are based on skills.
Twitter: https://twitter.com/etherplay
Subreddit: https://www.reddit.com/r/Etherplay/