Just published an OSE version of much of the 5e science-fantasy content of this blog over on driveThruRpg.
Wizards & Machineguns (OSE)
Posted in AD&D, Adventurer's Vault, Class, Dungeons & Dragons, Gear, OSE, product, Races, Science-Fantasy, Skyfortress of the Space Wizards, Spells, The Ninth World