A source at Spike Chunsoft has revealed to Siliconera that the company is looking to bring their Attack on Titan game for the Nintendo 3DS to North America, and has been searching for a publishing partner to do so.
Attack on Titan was released in December 2013 in Japan. The game sold 93,000 copies in its first week and sold out very quickly after that at retail stores. Over the next several weeks, Spike Chunsoft continued to ship additional copies of the game, with demand constantly outweighing supply.
By February 2014, the game had sold over 240,000 copies at retail—and we imagine even more when counting download copies, due to the short supply in retail stores.