I present to you a
comprehensive list of OSR/D&D-esque games. Only those games qualified that are either (1)
retroclones (presenting an older system with or without modification; e.g.
Kazamaták és Kompániák and
AS&SH), (2)
belong to the OSR by consensus (games building off of D&D's mechanics in innovative ways; e.g.
Mazes & Minotaurs and
Ghastly Affair), or (3)
old-school in gameplay (having the same or very, very similar gameplay to D&D but with a different system; e.g.
Torchbearer and
Dragon Age).
Mind you the list includes games that had to do with 3E and 4E as well, so it is not strictly pre-3E D&D, and even some edge cases are on the list, such as
Zweihänder and
OpenQuest, which are clones of WFRP and Runequest, respectively (but the gameplay patterns are notably still D&D-esque, and they fit the spirit of the DIY OSR community). I fancy the term
broad OSR (because some people would argue
Wayfarers or
Radiance disqualifies), but that might as well be as inaccurate as
narrow D&D-esque (but then where's
Infernum and
Warcraft d20, one might ask).