One of the classic PC meta-games has always been, "Will it run?" I've got some decent kit nowadays but in the mid-2000s all of my PC gaming was done on a crappy laptop with integrated graphics, and I either played '90s classics or, every so often, would try something contemporary and watch the poor thing sputter through some 5FPS slideshow. Hell this thing could barely run Quake, but optimism sprang eternal...
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This site lets you play any Doom WAD file just like that
Source: PC Gamer (opens in a new tab)