Today, we have an exciting update: Duncan and Paul, alongside many other talented members at Hopoo Games (Risk of rain and deadbolt), will now be working on game development directly at Valve Software

Campo Santo people completed a phenomenal Half-Life game.

Smells like bolstering the Deadlock team after the (probably massively surprising) huge surge the alpha is having in popularity. But it's Valve, so you never know. Assuming their hierarchy - or lack thereof - still remains it's not like they'd be tied to Deadlock forever either.