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The Original Doom Pre-Release Alpha and Betas, worked on by John Romero and John Carmack before Doom's original release in 1993. These demos are unmistakably Doom from the off, but there are various quirks and changes which were added and removed along the way, including the weapons, pickups, levels, gameplay and a whole lot more. Join me as I explore the maps on these Doom Alpha and Beta versions.