Hogwarts

Dark Times RPG
Interactive RPG that features an item and stat system, also features trading and classes.
http://darktimesrpg.com

The Four Houses of Hogwarts
RPG that picks up after the fifth book. Uses message board.
http://hogwarts4houses.proboards26.com/

Harry Potter RPG
An Interactive RPG that offers the ability to make characters and role play with them in the Harry Potter world.
http://hprpg.leopets.net/

Hidden Hogwarts
Harry Potter RPG with forums, guided plot, classes and school related activities. [Archive]
http://www.geocities.com/hogwartshallhidden/

Hoggy Hogwarts
Roleplaying game allowing players to be sorted, go to classes, use password-protected dorm rooms, buy things in Diagon Alley or Hogsmeade, take part in quidditch and own a house elf.
http://members.tripod.com/proffessor_h/

Hogwarts 1940
At the brink of World War II, Hogwarts students learn how to deal with a world becoming increasingly less friendly.
http://www.geocities.com/hogwarts1940/

The Hogwart's Great Hall
Contains sorting hat and message board.
http://virtualhogwarts.curvedspaces.com/

Hogwarts Live
Players choose their house and background, and then can fight other students using a selection of items.
http://www.hogwartslive.com/

Hogwarts Online
Forum based RPG. Features classes, Quidditch, Hogwarts grounds, and Hogsmeade.
http://hogwartsonline475.yuku.com/bhogwartsonline475

Hogwarts Online School
Players can get sorted, go to class, earn points for their houses, visit common rooms, and play Quidditch.
http://geocities.com/hogwarts_online_school/

Hogwarts Our Way
RPG which offers trying out creative abilities, and working on Role Playing skills.
http://www.geocities.com/hbte_13/

Hogwarts Private School
RPG that uses a message board. Teacher and student positions, boys and girls rooms, Quidditch, and a Dueling club. [Archive]
http://hogwarts25.proboards23.com/

Hogwarts School
A Harry Potter RPG that features a Dueling Club, Quidditch, and The Daily Prophet, and is played through a message board.
http://www.geocities.com/porkipine25/hogwartsschool.html

Hogwarts School of Harry Potter Fans
An online school for Potter fans.
http://www.hawkeye1215.com/

Hogwarts School of Witchcraft and Wizardry
Classes, Quidditch, and quizzes. Uses a message board.
http://www.geocities.com/hogwarts_school_of_ww_rpg/

Hogwarts School of Witchcraft and Wizardry
Hogwarts role-playing site that includes guides for the students, teachers, and required equipment. Some Harry Potter fan fiction is also included.
http://www.geocities.com/EnchantedForest/Mountain/4229/

Hogwarts School of Witchcraft and Wizardry
RPG which takes place after the fall of Voldemort. [Archive]
http://www.geocities.com/milo_carson/

Hogwarts School of Witchcraft and Wizardry
RPG using a message board. Classes, jobs, separate house vaults at Gringotts, the castle grounds, Quidditch fields, and clubs.
http://crystalic.proboards22.com/

Hogwarts School of Witchcraft and Wizardry
Simulated version of Hogwarts brings the student through getting the letter, buying supplies, and attending the school.
http://www.maxpages.com/hswwonline

Hogwarts School of Witchcraft and Wizardry
Practice role-playing skills and creativity in writing at this Harry Potter based site. Create a character, attend a virtual Hogwarts, meet people and even play Quidditch.
http://hogwartsrpg.itgo.com/

Hogwarts School of Witchcraft and Wizardry
A Harry Potter RPG that offers the ability to create a character, get sorted, and take classes.
http://www.hogwartsschool3.netfirms.com/

Hogwarts School of Witchcraft and Wizardry: A New Beginning
A RPG based in the time period after Voldemort was defeated by Harry Potter.
http://www.freepowerboards.com/magicaldarkwar/

Lost in Hogwarts
Features a Yule Ball, Great Hall, joining classes, getting lost in the Forbidden Forest, and exploring Hogwarts. Uses a message board. [Archive]
http://lostinhogwarts.proboards12.com/

Lumos Alliance
RPG which features classes, the ability to work at the Ministry of Magic, sorting, and the ability to visit many locations around the Harry Potter world.
http://lumosalliance.com/

Magical Hogwarts
A longstanding Harry Potter RPG, with areas such as Hogwarts, and Diagon Alley. Offers monthly games and competitions.
http://www.magical-hogwarts.org/

Magical Mischief Makers
RPG based on the Marauders' 5th year at Hogwarts, before Harry's time. Message board system. [Archive][Closed]
http://p221.ezboard.com/bmagicalmischiefmakers67363

Mischievous Four
A Harry Potter Roleplaying Game that takes place in the Marauder's Era. [Archive]
http://mischievous4.proboards85.com/index.cgi

The Wizarding Community
RPG taking place in Harry's sixth year in Hogwarts. Features Ministry-affiliated and adult wizard jobs.
http://www.geocities.com/the_wizarding_community/

The Wizard's Wardrobe
RPG geared for older Harry Potter fans. Features Quidditch, rules and information on the game, and forum for activities.
http://www.erys.net/wardrobe/