Valve's Chet Faliszek has said the firm prefers to update its Source Engine as needed, instead of working on a placement, a la Source Engine 2.
Speaking with GamingLives, Faliszek said it that at "some point," the firm will create a new engine, but for now, updating the 2004 model makes the workload much easier.
"That’s just the way we work with that engine, we’ve just update it not just replace it, and some point we may say there’s Source 2 or whatever, but really for us there’s been a pretty easy way to keep it and understanding the tools," he said.
"When you replace an engine you’re replacing the tools and the way that people work, there’s an expense in man hours and people learning and people getting up on it right."
Faliszek's comments reflect those made by studio boss Gabe Newell in May, when he said there were “advantages on iterating on a mature and stable and shipped codebase, as opposed to starting over again.”
Thanks, PC Gamer.