found the original demo –

found the original demo –
found the original demo –

Maybe not everyone knows that Super Mario Bros. 3 had a demo in PC version, an experiment that had been carried out by id Software and the proof of which was finally found recently with the original demo recovered from the Strong National Museum of Play.

The story of this PC version of Super Mario Bros. 3 is also found in the book Masters of Doom, which tells various background of the old id Software, then called Ideas from the Deep (IFD). Apparently, the game was processed in less than a week and a copy was sent to Nintendo hoping to get an agreement for the distribution of the game on PC, but this did not happen due to the refusal of the Kyoto house.

The prototype of Super Mario Bros. 3 for PC was received by Andrew Borman, curator of the Museum of Play, along with other software donated by an unidentified developer. This is a very interesting document also because it testifies, as shown in the video below, the particular technique adopted by IFD to make scrolling work in a particularly fluid way.

The technique was developed by John Carmack and it is an algorithm of scrolling which managed to keep the screen movement smooth despite the amount of elements present, which was rather unusual in an age when PC games relied on switching between screens or noticeable stuttering.

However, the work done on Super Mario Bros. 3 was not completely lost: the technical solutions adopted, including this scrolling system, were then used to create Commander Keen, one of id Software’s first global successes.


original demo Nerd4life

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