ArenaNet co-founder Jeff Strain has left his role as president of product development at NCsoft West.

In an unrelated move, president of publishing David Reid has also departed the company.

“NCsoft West announces the departure of Jeff Strain, president of product development, who has chosen to leave NCsoft under amicable terms and NCsoft wishes him the best in his new endeavor,” the publisher said in a statement issued to MMORPG.com.

“This does not change our plans or negatively impact our upcoming launch of Aion, and NCsoft remains very excited about the game’s launch on September 22 in the US and September 25 in Europe. These changes do not influence any other teams, development schedules or other launches.

“In an unrelated and separate event, David Reid is no longer with the company. David joined NCsoft in early 2008 as vice president of marketing and helped in the formation of NCsoft West and the relocation of our headquarters to Seattle.”

In May NCsoft reported strong growth during its first fiscal quarter, driven by swift sales of Aion: The Tower Of Eternity in Korea.