Valve’s seminal shooter series brilliantly blends platforming and puzzle solving into its action. Sadly, most folks are still waiting for a conclusion to the killer cliffhanger at the end of the second pseudo-sequel, Half-Life 2: Episode 2. Fortunately, Mac gamers have plenty of catching up to do. Half-Life 2 is a pretty straightforward first-person shooter, but it has some nitty gritty stuff worth knowing. Check it out after the cut!