I am currently developing a campaign setting to be used for my Swords & Wizardry (Continual) Light game.
Tanlentin is an idea I had for a fantasy world for many years. Originally it was supposed to be used as the setting for a Young Adult book series. But that hasn't happened...yet.
We are starting small with an area I've made previously using Inkarnate.
I am using elements from other campaigns/adventures that I own and that I would like to see working together. Village of Hommlet, Rappan Athuk/Mouth of Doom, and Temple of Elemental Evil. Though, there is no Temple in this setting but rather rifts in the elemental planes. I also plan on including at least one or two artifacts/relics from the AD&D Dungeon Masters Guide. Multiple stories that are a part of one story.
I am going with races as a class format and I've also created new classes for this campaign. I am also using the Optional Classes from the Swords & Wizardry Continual Light beta.
Humans - Fighter, Cleric, Magic-User, Thief, Shifter, Berserker and the optional classes.
Elf - The Elves of Tanlentin live on the tops of mountain peaks. They are the defenders of the realm. They cast protective wards on the mountains of the realms to keep the evil within from escaping. Though, occasionally some evil does make its way out of the mountains. Mechanically, the Elves are a hybrid class of Fighter and Magic-user.
Dwarf - The Dwarves of Tanlentin are seamen (haha!) and shipwrights. They live on their ships that they have crafted. Their stout bodies keep them grounded on their ships in even the treacherous of storms. Some of their ships are as large as small villages. Mechanically, the Dwarves are Fighters but with some armor restrictions and their BHB is lower than that of the human Fighter.
Halfling - The Halflings of Tanlentin were once humans many, many years ago. They fell upon a curse and their offspring were much smaller and weaker than what they once were. Eventually the humans of that region died out and all that was left were the Halflings. The Halflings can only reproduce with each other. In order for them to survive and be useful to the other races they have learned to be engineers and tinkerers. Mechanically, the Halflings are a custom class that is more like a gunslinger.
Construct - The Constructs of Tanlentin are created structures of the Halflings. They were created as guardians for the Halflings. They have also been created to serve as servants for the other races. They can be found in the homes of the wealthy, working in shops and hard labor jobs. Mechanically, the Constructs are a custom class that I have designed just for them.
So yes, to answer the question you may have, there is a hint of Steampunk in this setting. Thanks to the Halflings.
Later I will post the classes that I will be using if anyone else chooses to add them to their games. They are designed to go to level seven for Swords & Wizardry Continual Light.