Jen Zee was the artist, Gavin Simon developed the gameplay, Andrew Wang helped develop the game, and Darren Korb handled the sound effects and music. The co-founders of Supergiant Games, Rao and Simon, previously worked for Electronic Arts, where they helped develop Command & Conquer 3 and Red Alert 3.[24] They left to form the studio because they wanted the development speed and the ability to try new ideas that would be possible with a smaller team. Development began on the game in September 2009.[25] The team created the game over almost two years, and funded the development themselves.[24] Most of the team built the game in a house in San Jose, though the music and voice acting were recorded in New York City.[25] Some of the San Jose designers—including the writer—did not meet Rucks' voice actor in person until near the release of the game.[26] The team spent the first nine months of development prototyping various ideas, before settling on the game's design.[25]