Nexon is entering the mobile and social gaming markets with versions of two of its worldwide titles, KartRider and MapleStory . Nexon has plans to publish KartRider Rush on the iOS and Android platforms and MapleStory Adventures on the Facebook platform later this year. KartRider Rush launches later this month, and MapleStory Adventures is set to launch this summer.

KartRider Rush, playable soon as a free app on iPhone, iPod Touch and iPad, and on Android devices later this summer, is a mobile version of Nexon’s KartRider, which boasts more than 200 million registered players worldwide.

KartRider Rush will allow up to four players to race against each other on unique and challenging maps in both a battle mode and time trial mode.

A single player mode allows players to race against AIs in Item Mode and Speed Mode, and players can compare their scores against friends using Facebook Connect.

KartRider Rush’s microtransaction-based model allows players to download and play the game for free, and also provides the option to extend the gameplay experience through the purchase of additional tracks.

MapleStory Adventures will be available on Facebook this summer, taking the original and familiar colorful 2D side-scrolling adventure, MapleStory, and adapting it to a simpler interface. MapleStory Adventures will allow Facebook users to participate in quests and challenges while inviting friends to help in combat.