Half-Life was the game that introduced me into the world of gaming, and it is my personal favorite. I just can't believe that just now it's getting the GS's title of a Greatest Game.
And Serious Sam The First Encounter? It was a GameSpot's GOTY 2001, you know. And it's semi-sequel, Serious Sam The Second Encounter runs on the same engine. Those are some of the best low-end FPSs around.
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