Games

Avada Kedavra
Harry Potter RPG exploring the conflict of good and evil at the time when the power of Lord Voldemort was reaching its height.
http://uk.geocities.com/finiteincantatem/

Butterbeer RPG Community
Takes place through the journals created by different members to role-play and interact as Harry Potter characters.
http://www.caleida.com/userinfo.bml?user=butterbeer_rpg

CNN money: Harry Potter Currency Converter
Converts dollars into galleons, sickles, knuts, and vice versa.
http://cgi.money.cnn.com/apps/hpcurrconv/

1313 Diagon Alley
Tour to Diagon Alley and "Find Harry Potter" -game.
http://1313diagonalley.homestead.com/index.html

Funtrivia: Harry Potter Quizzes
Contains various quizzes to play and create.
http://www.funtrivia.com/dir/3674.html

HarryPotterFans.com
A collection of games and puzzles, a links directory and a free email address offer.
http://harrypotterfans.com/

Lumos Harry Potter RPG
Play-by-post role playing game. Events take place before the epilogue of Deathly Hallows. Playable canon and non-canon plot lines.
http://lumosrpg.com

Prior Incantato - A Marauder's Era HP RPG
RPG with settings in Hogsmeade, Hogwarts and the Muggle World.
http://p078.ezboard.com/bhppriorincantato

Skyride 3D
A 3D Quidditch game. You play as Seeker, and try to catch the Snitch. A download page and screenshots.
http://www.phoenixfeder.de/skyride/

Virtual Harry
Tests and games that determine the character one could assume in the Harry Potter world.
http://feenyoda.tripod.com/virtualharry/home.html

Witherwings Harry Potter RPG
Year 1999 Harry Potter Role-Play. Settings include Hogwarts, Diagon Alley and Castle Lestrange. Playable students, adults or creatures. Ally with Death Eaters or the Order.
http://witherwings.info