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Did you not play turn-based games before?
TBF I was like 11 when I first played it, was a real tough game compared to modern Fallout 3/NV.
Fallout New Vegas derived from Fallout 1/2, especially with the evolution of the New California Republic that started in Shady Sands back in Fallout 1.
Many characters of Fallout 1/2 were mentioned in New Vegas, like Marcus and Jacob, oh and the Vertibird crashed Daisy Whitman in Fallout 2, etc.
Gameplay :-)
I got Fallout 1 & 2 (and Fallout Tactics) for free off Gog.com a while ago. The gameplay is so bad it's a wonder they led to Fallout 3. The story and iconography is cool though.