Back in the 90s I was playing the best Cyberpunk RPG ever made called Cyberpunk 2020 by R. Talasorian Games. Hands down the simple rules, the story, the high tech low scum style over substance.
Then this company came out with Castle Falkenstein.
What the hell is that?
I right away noticed the first section of the game book was a lavishly illustrated and painted book split into interesting topics on a fantasy Steampunk version of Europe.
I mean the story alone was worth the price of the book. Then I got to the actual rules themselves. Almost freeform, played with cards, an incredible magic system, faeries, steampunk devices, infernal machine!
All of it was set up so very simple and easy to use. You wrote your characters instead of rolling by choose a few things you were good at and then you started playing.
Then the supplements that came out were some of the most incredible and useful supplements! Books of Magic Orders, Fairies, Society, Steampunk North America!, Leonardo da Vinci's Lost Notebook!
I got everything they made for the game and no it's not for sale ever.
If you can still find it buy it.
Never has there been such an incredible RPG that truly capture the genre of Steampunk. Very easy to run and play. Almost freeform.
There is a new/old website that you may still be able to order it.
UPDATE! This link is good and has a few PDFs links to see what some of the game looks like. YOU WON'T BE SORRY!