Nexon's iOS title Kartrider Rush has been downloaded over 3 million times since release.
The game notched up 1 million downloads in its first week of release back in March. The PC version of the game has over 200 million users worldwide.
"We are appreciative and excited about the tremendous reaction we've received from players all over the world," commented JeongMin Han, Nexon Mobile's team leader.
"We will continue to work and develop new, exciting content for our players, giving them more challenges and fun."