I had this idea, let's go out to a store and buy the cartridges, buy three or four of them. And indeed, despite Linden's technical wizardry, even he couldn't do anything about the underpowered hardware, and, as anyone who's played it can tell you, while the sheer existence of Doom on the SNES may be magical, playing it is anything but.
Because they had extremely limited computing power, they had to write their code as efficiently as possible. Consider the first-person shooter Quake III Arena, usually called Quake 3, for example: players navigated a three-dimensional world, so the programmers had to find the cleverest ways to handle 3D graphics and the associated calculations. Quake 3 released in 1999 and is considered one of the best computer games of its time.
The existence of upcoming new versions of Bethesda's and Fallout: New Vegas might be the worst-kept secret in gaming right now, much like The Elder Scrolls IV: Oblivion Remastered was prior to its release last year . If this is the first you're hearing of this, of why everyone is so convinced that the remasters are on the way. The community is understandably excited, with said excitement at least partially fueled by the success of Fallout season 2 on Prime.