Valve has acquired a San Francisco-based start-up founded by former PopCap staffers, and plans to set up a new subsidiary in the area.
Star Filled Studios was founded in September this year by Tod Semple and Jeff Gates. Semple was previously a developer on Plants vs. Zombies at PopCap, and has also worked at LucasArts on Star Wars: The Force Unleashed and on Diablo III with Blizzard North.
Meanwhile, Gates previously worked on Spore at Maxis, and also developed Diablo III and worked at PopCap.
In a statement to Edge, Valve co-founder Gabe Newell confirmed, "The guys who did PvZ, down in the Bay Area, we're helping them set up a Valve subsidiary there."
Newell didn't give any hints regarding what the studio will be tasked with over the coming months. Gamasutra has contacted Semple for confirmation.