As mentioned in Wikipedia, "Doom is a 1993 computer game by id Software that is a landmark title in the first-person shooter genre, and in first person gaming in general.
I played Doom a lot with it was first released, and I couldn't resist to host this Flash version of the original game on FGN's server, just for fun!
Ok, it's violent and bloody, ok it's not recommended for children, ok it's a 15 (fifteen!) years old game, but oldies are goodies, and this Flash version is the exact replica of the original!
Important Note: this game requires Flash Player 10!