Is there a way to earn in-game currency in Machine Zone Inc's games?

Yes, players can earn in-game currency in Machine Zone Inc's games through various methods. Players can participate in daily quests and achievements that offer rewards in the form of in-game currency. Completing missions and progressing through the game can also unlock currency rewards. Additionally, players can earn in-game currency by participating in events, tournaments, or seasonal promotions that offer special rewards. Some games may also provide the option to watch advertisements or complete surveys in exchange for in-game currency. Machine Zone Inc strives to provide opportunities for players to earn currency while progressing in their games and engaging in the community.