I started using the term not long after I released Labyrinth Lord, and according to the all-knowing source of modern information (Wikipedia of course) I am responsible for coining the term (was going to post a link but it won't load). So, you can send the nasty letters to me for getting the madness started in the first place.
As the term "retro-clone" started catching on, it wasn't long before people started calling Castles & Crusades a retro-clone. For people new to this discussion, I've tried to talk about what I think a "true" retro-clone is here and here. At first it didn't bother me too much, because at that time, in 2007, there was still a decent amount of "CLONES aRe teh IlLEEgAL!!z!" so I thought if people started to place them in the wider context of other OGL games like C&C it might help usher in their acceptance.
Also, at that time there just weren't very many clones anyway, so it was easier to classify them. There was only OSRIC and Labyrinth Lord for the "true" clones, then BFRPG as a sort of near-clone. Today, only two years later, the entire landscape has changed and it looks like the future will only bring on more change. Interestingly though, in 2009 just as in 2007 there still are only two games that I would call "true" clones. When I set up my threefold model of neo-retro classification it was before I'd had a chance to look some of the other games over more carefully, so here is the model as it would look today (there are now other OGL spinoffs of these, but I am not familiar with them).
Now what we are seeing are games released based on the OGC content of the retro-clones and near-clones. Many of these games hybridize to one degree or another the older style of games with 3e, or take them in different directions altogether. I predict there will be dozens and dozens of these games released over the next 5 years or so. All of these games are being called "retro-clones" out in the wild (that is, forums) even though according to MY model that the world should be paying attention to most of them would be near-clones (I hope you sense my sarcasm, I'm not actually that self-important!). Compound that with the fact that some of these games will claim to be cloning 0e, or Original Edition D&D, or delivering the feel of one version, or another version, etc. and the whole concept of what constitutes a clone has changed. By my usage a "true" retro-clone is a game that attempts to emulate as closely as legally possible the rules of a particular game.
I think in retrospect we can now say that the term retro-clone was doomed from the start. It saddens me to announce its demise at only the age of 2, but that's life.
RETRO-CLONE
May fast wings take you to everlasting peace
RIP
2007-2009
May fast wings take you to everlasting peace
RIP
2007-2009