It’s been two weeks since A Way Out hit the shelves, but sales for the game have already far exceeded expectations. A Way Out is the first game to be developed by Hazelight Studios and is published by EA.

Initial estimates had the game selling about 203,000 copies total, according to a Redditor who found a screenshot of part of an EA marketing plan for some of their games. The image also revealed that the publisher was uncertain about releasing a game that is, “Co-Op centric.” However, in just two weeks A Way Out has already sold over 1 million copies.

In celebration of the game’s success, Josef Fares, the director of A Way Out, tweeted out, “HOLY SHIT, this means that 2 million players have played the game. Thank you so much.”

Josef Fares was also the director of Brothers: A Tale of Two Sons. You might remember him as the guy who gave really passionate speech at last year’s Games Awards, in which he defended EA, cursed out the Oscars, and promoted A Way Out.

A lot of the same people who worked on Brothers: A Tale of Two Sons also worked on A Way Out. The two games are similar in that they are third person action adventure games that follow around two protagonists. However, Brothers was entirely a single player game and A Way Out is exclusively Co-Op.

The game was designed around the Co-Op feature and the mechanic impacts the gameplay and narrative in a big way. In order to solve puzzles, the two players must work together just like the two protagonists, Leo and Vincent. The game’s story is far from perfect, but it does make an effort to incorporate the teamwork theme into the narrative.

A lack of a single-player mode was seen as a major risk, but it seems to have paid off in a major way. The successful sales of A Way Out might inspire even more Co-Op only games in the near future.