Star Wars Galaxies allows the player to visit various planets of the Star Wars universe.
With new extensions some new planets were added. Most planets can have player cities and also feature planet-specific weather effects e.g sandstorms on Tatooine.
Each planet's in-game day takes real-time hours. Tatooine, Naboo, and Corellia are on a 3 hour cycle. Dantooine, Yavin IV, Talus, and Endor are on a 2 hour cycle. Dathomir, Lok, and Rori are on a 1.5 hour, 1 hour, and 30 minute cycle, respectively.
Upon release of the game in 2003, 10 planets were open for visitation: Tatooine, Naboo, Talus, Rori, Corellia, Lok, Dantooine, Dathomir, Endor and Yavin 4. Of these, Tatooine, Naboo, Talus, Rori and Corellia were considered "starting planets," planets immediately available after Character Creation was completed. Later, after amassing enough experience, players could travel to the five more advanced planets.
All planets have at least one NPC city/outpost, although only six have respectably sized cities.
On seven planets (Tatooine, Naboo, Rori, Talus, Corellia, Lok and Dantooine), players can place any type of buildable structure and create player cities. On three planets (Dathomir, Endor and Yavin 4), players may not place houses or shops, only resource harvesters and similar structures. No buildings may be placed on Mustafar or Kashyyyk.
Every original planet has a planetary map filled with points of interest (POIs). Sometimes these adhere to some sort of quest, and some are purely for sight-seeing.