Campaign Genre: Renaissance

A popular of game genre is  "Renaissance". Not only is suited for RPG games, but Renaissance Faires have been a popular festival celebrating the "Elizabethan Period" and giving way to LARPs. This genre tries to play around  the historical era of the "Age of Exploration" and the growth of "Scientific Knowledge". It is a human only campaign, and fantasy races are purely myth & legend (but can be encountered). Most of the campaigns can be full of heavy political intrigue between various nations, churches, and merchant houses.  More action minded adventurers can explore the world making new forays into far off nations and encountering exotic cultures and new lands. 

Familiar Campaign Settings set in the genre of "Renaissance" are:

7th Sea
Dangerous Journeys
Folkloric
Skull & Bones
Lands of the Samurai
Northern Crown
Qin
World of Freeport

Campaign Genres: High Fantasy

The most common type of game genre is  "High Fantasy". It is a genre where Wizards & Warriors delve into a world of Dungeon & Dragons. You can play as elf, halfling, human, dwarf, gnome, orc, etc. and choose from a variety of professions ranging from the mundane to the arcane.

Familiar Campaign Settings set in the genre of "High Fantasy" are:
Anima
Arcanis
Black Company
Blue Rose
Birthright
Castlemourn
Codex of Erde
Dawnforge
Demon Wars
Diablo
Diamond Throne
Discworld
Dragon Lords of Melnibone
Dragonfist
Dragonlance
Echoes of Heaven
Elemental Powers
Everquest
Exalted
Forgotten Realms

Great City
Greyhawk
Grimm
Gryphon World
Hackmaster
Harn
Hunt for the Rise of Evil
Ironclaw
Kingdoms of Kalamar
Known Realms
Kyngdoms
Lands of the Jade Oath
Legacy of Maela
Legend of the Five Rings
Lord of the Rings
Lost Prehistorica
Lost Realms
Maelstrom
Midnight
Mystara
Mythe
Neiyar Neoexodus
Nyambe
Oathbound
Palladium
Pathfinder
Ptolus
Runequest
Rings of Brass
Scarred Lands
Shadow World
Sovereign Stone
Spiros Black
Talislanta
Thieves' World
Third Dawn
Ultima
Violet Dawn
Warcraft
Warhammer
Warlords of the Accordlands 
Wheel of Time
Wilderlands
Zobeck

Although this is not a complete list, there a hundreds of other out there for you to try!