Gamification is a new concept using elements of game mechanism with clear goals in non-game contexts. This idea has been used successfully in a variety of domains with positive effects of games and game culture. As games have been a powerful tool in persuasion and behavior changes with purposive desings, such gaming effects have brought about a new era, called “Game 3.0”. This paper proposes transitional aspects of Game 3.0 Era, by focusing on gamification concepts and applied game machanism. From previous literature, the structural elements of gamification can be derived from the concepts of play, entertainment game, edutainment, funware, and serious games. Likewise, core elements of gamification comprise participation & engagement (as motivational factors associated with digital games, GameFlow, E-GameFlow), game mechanics, and game dynamics. The various aspects of game eras from Game 1.0 to Game 3.0 are summarized and discussed.