Microsoft has released Siege Editor, a campaign creation application for its recently released PC RPG, Dungeon Siege. The editor alllows players to assemble terrain, populate areas with hundreds of different monsters and NPCs, script battles, create lighting sources, and enhance levels with custom sounds. Owners of the game interested in using the editor can download the client for free here.

Gas Powered Games is publishing online instructional documents to help players learn how to use the program. The turorials are dubbed Siege University and can be found at the company's official site.

Dungeon Siege is the recently released action RPG for the PC. The game plunges players into a continuous 3D fantasy world on a quest to stop a mysterious evil that has been unleashed. Beginning with a single character, players can travel through the world and gather a party of up to eight characters, or choose to face the challenge alone. Check out RPGamer's game coverage for more.