I'm working on a game that requires a leaderboard, like ios game center, whats android's equivalent to game center? And is it possible to make android game with such leaderboard? Cocoonjs or crosswalk?
Develop games in your browser. Powerful, performant & highly capable.
Android's equivalent to iOS's Game Center is "Google Play Game Service". As I know, none of the two supports this until now, but I think they will come to support it soon.