https://techcrunch.com/2020/03/23/half-lifealyx-delivers-the-watershed-moment-vr-gaming-needs/

If you weren’t playing games when Half-Life came out, it’s hard to drive home just how shocking a departure it was from what had come before. Though some familiar mechanics served as a base to build off of, the injection of elaborate scripted sequences that put you into the action, mature humor and genuinely engaging set-piece driven plot put Half-Life into its own special section of the stratosphere.

It’s not often that you can say that a product changes everything in its category from that moment on. Half-Life did that.