There are numerous reasons to start a fan-made codex of your own. Perhaps you enjoy the fluff for an army that doesn't exist and want to see it on the field. Or maybe you've got self-created rules rolling around in your head and you've just got to get them on paper. Or possibly you just want something so overpowered on the tabletop that you can't possibly lose (though this commonly stems from impotence in the pants.) For me, the Adeptus Mechanicus codex started about a year ago after finishing what is now my favorite novel; Titanicus by Dan Abnett. If you haven't had a chance to check this book out, with the fury of a thousand suns (not a typo) I suggest you give this a read. For now though, over the next few articles I'll delve into how the Mechanicus dex started out, what it is currently and the what the future holds for it.