The seminal FPS was released 15 years ago today, turning not just shooters, but the whole world of gaming on its head with plot-driven action and some of the best design the industry has ever known, not to mention a robust and iconic addition to the world of modding. Few better days to redownload Black Mesa: Source onto my new-HDD'd laptop. :D [spoiler]Other than HL3 being announced, but I'm talking real events here.[/spoiler] What are your favourite Half-Life memories?