One of the newer MMOs to come to the states, “Black Desert Online” is already off to a great start. The game’s publisher announced today that the game has now sold over 400K copies in just over a month. Better yet, those numbers only include the North American and European markets.

Daum Games expects the new MMO to become one of Korea’s most successful games in the West, following favorable reviews and a thriving player base.

“Considering the upward trend, I expect that the game will achieve over one million sales this year. What’s impressive is these figures far exceed those in the domestic market,” Daum Games Europe CEO Min Kim said in an interview in Seoul, last Wednesday.

Daum Games attributes much of the game’s success to adopting a premium business model for Western audiences as opposed to the free-to-play model used in Korea.

After purchasing the game once, players have access to all content updates for free as they become available. Daum Games is planning to catch up on the Korean service by delivering near-monthly content updates for European and North American players to enjoy.

Furthermore, Black Desert Online’s cash shop is also performing extremely well. “A game with a buy-to-play business model normally has a much lower conversion rate for paid in-game items compared to free-to-play games,” explains Kim. “But Black Desert Online is recording a much higher pay ratio than the average 11 percent normally seen in free-to-play games.”

Black Desert Online now boasts an average of 100,000 concurrent users according to the company’s announcements today.