id Software's Super Mario Bros. 3 PC port is in a museum now

The founders of id Software tried to pitch Nintendo on a Super Mario Bros. 3 PC port - that demo is now in a museum

id software News, Reviews and Information

Retro - Museum obtains rare demo of id Software's Super Mario Bros. 3 PC port, 1990 demo was rejected by Nintendo but led to id's own Commander Keen

Super Mario Bros. 3 – Video Game Canon

Museum obtains rare demo of id Software's Super Mario Bros. 3 PC port

Id Software's Super Mario Bros. 3 PC Port Found In The Wild - GameSpot

35 years later, Mario 3 still does some things better than every Mario since

id Software's Mario PC port found in a stack of discs submitted to a museum

Super Mario Bros. 3 Demo (1990) : John Romero : Free Download, Borrow, and Streaming : Internet Archive

Super Mario Bros. 3 - Wikipedia

id Software's pitch to Nintendo to port SMB3 to DOS now in a museum

Retro - Museum obtains rare demo of id Software's Super Mario Bros. 3 PC port, 1990 demo was rejected by Nintendo but led to id's own Commander Keen