So, I decided to make a list of classes from such publications. This is mostly just meant to be a quick reference for anyone curious as to what's out there so far. If I missed anything, please let me know!
Also, I may do a round-up of links to interesting online character classes at some point.
UPDATED ON FEB. 21, 2017 TO ADD APPENDIX 3.
Lamentations of the Flame Princess Rules & Magic
- Alice (or Alistair or Fool)
- Knight of Science
The Chaos Gods Come to Meatlandia
- Raconteur (Bard)
- Chaos DJ (Bard)
- Nexus Bard
- Carnomancer (or Meat Mage)
- Pusher Gnome
- Blattarian (updated from Issue Zero)
- Navigator (updated from Issue Zero)
- Vassal (updated from Issue Zero)
- Skinned Moon Daughter
- Partners in Crime*
Vacant Ritual Assembly #4
Appendix 1: Classless Systems and Alternate Character Advancement Systems
- "New Character Creation and Advancement Techniques" from Green Devil Face #5.
- "Classless Lamentations of the Flame Princess" from The Undercroft #4.
- "Everyone is an Adventurer" from The Undercroft #9.
- The Lotus Monk from Qelong is intended to be a template of abilities for specific NPCs, but if you want to stick it to the man you can probably turn it into a character class pretty easily.
- There are some special rules for religion that can be used with many classes, but especially Clerics, in England Upturn'd.
- If you wanted to make a Psionic class, the psionic rules in Carcosa might not be a bad place to start.
- The Meat Men from The Chaos Gods Come to Meatlandia constitute more of a suite of abilities/mutations for PCs to acquire than a separate class per se, but the text does briefly touch on the possibility of using the Meat Man as a class.
- The Thundercloud Druid from Vacant Ritual Assembly #3 is not a separate class, but rather a background that can be chosen along with a class. Rules-wise, a Thundercloud Druid essentially gets a specific package of starting equipment instead of randomly-rolled starting money. This issue of Vacant Ritual Assembly also introduces two new skills: Falconry and Play Wind. Conceivably, a separate Thundercloud Druid class could be created if one so desired.
- An article in Vacant Ritual Assembly #4 called "The Oolai Cloth-Skins and Dragon Blackhide Bastards" presents a system of magic item creation/character enhancement (depending on how you look at it) which could perhaps be used as the basis for some kind of Magical Weaver class.
- A new skill that is exclusive to Magic-Users, Pipe Arts, is presented in Vacant Ritual Assembly #5. In the same issue, Lycanthropy Rules are introduced, which could possibly be used to make a Werewolf class.
(This is definitely an incomplete list, and this stuff should really go in a separate post about free online character classes, but because I didn't define what I meant by "published" well enough until now, I guess these technically belong in this post somewhere. Besides, they're cool.)