Valve has witnessed another big name departure, with long-serving writer and VR ambassador Chet Faliszek leaving the company after 12 years.
"I worked there 12 years, shipped a bunch of great games and some amazing hardware and wanted to change things up," he explained. "There's no news on what's next. I will let you know when that happens."
During his time at Valve, Faliszek helped shape some of the firm's most popular titles, and helped create the stories for every game in the Half-Life, Left 4 Dead, and Portal series.
In many ways he was also the public face of the company's virtual reality efforts, and in recent years represented Valve at events around the world in an ambassadorial role that saw him connect with devs to help them understand and harness the potential of the new tech.
His departure means Valve has lost three key writers in just over a year, with Faliszek's fellow Half-Life scribe Mark Laidlaw bringing his 18 year career at the company to an end in January last year.
In February this year, Erik Wolpaw, one of the more prominent writers at Half-Life and Steam house Valve Software, also stepped down.