All the Latest Game Footage and Images from Half-Life 2d: Block Mesa Run. Think. Shoot. Live. Advertisement All the Latest Game Footage and Images from Half-Life 2d: Block Mesa Run. Think.

Discovered in the metadata for a new DOTA 2 update, it was found that Valve has recently done new work on “HLX”, which is the codename for what is assumed to be Half-Life 3. While this might ...