I loved Space: 1889. The setting was fantastic, and I also liked the RPG system. But for those who prefer a more nuts and bolts operation, you could try this GURPS conversion for Space: 1889
RPG Historical
Dice Chucker Universal RPG
Dice Chucker is a rules light RPG.
Dice Chucker is a rules-lite system that puts a new twist on rolling dice! A lot of players like rolling dice and Dice Chucker is here for them. You will find that Dice Chucker is chock full of dicey goodness! The rules here are pretty simple and straight forward and the details are meant to be handled by players and GMs as suits their tastes and the storyline. Dice Chucker’s rules can be adapted to virtually any genre you like: fantasy, sci-fi, horror, western, etc. Let your imagination be your guide!
Fourteen Free Microlite 20 RPG Variants
Microlite 20 is a set of minimalist RPG rules designed for compatibility with Old School Dungeons and Dragons materials, as well as the d20 OGL. Fourteen free Microlite 20 variants are available at the link.
Maccabees and Menorahs RPG
Maccabees and Menorahs is a “dreidel powered” powered role playing game designed for play over the eight nights of Hannukah.
The authors write:
Maccabees and Menorahs is a collaborative game where 2-5 players retell the story of Hanukkah. One person will be the Nagid (leader) who guides the group through the story. The other players will take on the roles of the Maccabees. When an outcome is uncertain, players spin the dreidel to find out what happens.
This game is designed to be played over eight short (15 minute) sessions, perhaps after lighting the menorah each night. You could also play it in one sitting.
Mobsters Prohibition Era Gangster Game
Mobsters is a role playing game of prohibition era gangsters.