LEGO/Themes

For the past 30 years, in addition to the standard boxes of coloured bricks that made it famous, LEGO has produced a large number of "themes": grouped collections of conceptually related playsets devoted to a specific setting or concept. The multitude of themes have explored a vast array of different time periods, settings, genres, themes, and even styles of building. As you may have guessed by now, this is an index of said themes.

LEGO System (basic bricks)

 * LEGO City
 * LEGO Pirates
 * Classic LEGO Space
 * Classic LEGO Castle
 * LEGO Space
 * LEGO Trains
 * Fabuland
 * LEGO Aquazone
 * LEGO Adventurers (later Orient Expedition)
 * Rock Raiders
 * Lego Life on Mars
 * LEGO Alpha Team
 * LEGO Exo-Force
 * LEGO Mars Mission
 * LEGO Space Police
 * LEGO Minifigures
 * Ninjago
 * LEGO Alien Conquest
 * LEGO Friends

Advanced builds

 * LEGO Technic
 * Slizers/Throwbots
 * Robo Riders
 * LEGO Mindstorms

Buildable Action Figures

 * Bionicle (originally a Technic spinoff; set the standard for future action figure toylines)
 * Galidor
 * Knights Kingdom 2
 * Ben 10 Alien Force
 * Hero Factory

Licensed

 * Star Wars
 * Harry Potter
 * Sports
 * FIFA
 * The National Basketball Association
 * The National Hockey League
 * Indiana Jones
 * Prince of Persia
 * SpongeBob SquarePants
 * Classic Disney Shorts
 * Toy Story
 * Cars
 * Marvel and DC superheroes
 * Batman and Spider-Man got their own individual themes several years previously.
 * Lord of the Rings / The Hobbit
 * Disney Princess (Duplo only)

Board Games

 * Minotaurus
 * Robo Champ
 * Ramses Pyramid and Ramses' Return
 * Creationary
 * Lunar Command (cancelled)
 * Race 3000
 * Pirate Code and Pirate Plank
 * Meteor Strike
 * Lava Dragon
 * Atlantis Treasure
 * Heroica