@carlosefr@mastodon.socialShortly after "Shadow Knights" (1990), id Software used the same engine to do "Dangerous Dave in the Haunted Mansion" (1991).
Neither is meant to represent what PC hardware could do at the time. Both are EGA when VGA was readily available, and both do PC Speaker beeps when proper sound cards were becoming a thing.
But you can fit both in a single floppy disk, and run them on most PCs of the time. And they do make good use of hardware limitations. 
