Valve has decided to make its Source SDK free for all users, rather than require at least one Source title be purchased to obtain access to the engine. Valve has confirmed that its Source software ...

Valve has announced that the latest release of their Source Engine SDK has been released and that it now includes full support for the Oculus Rift Virtual Reality head mounted display. We have ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. How best to describe Underhell , a mod (a game , really) for the Source Engine? Well, it's a ...