The video game deal of the week over at Amazon this week is Dungeon Siege III for Xbox 360 and PS3 for only $29.99 each (that’s 40% off the list prices of $49.99), and for PC for only $19.99 (that’s 50% off the list prices of $39.99).

This sale is valid only for this week through the end of day PST on Saturday, October 1, 2011, while supplies last.

From the Xbox 360 product page:

* For the first time, play DUNGEON SIEGE on high-def consoles
* Players will be able to adventure by themselves or with friends in co-op multiplayer
* Uncover a deep story that only Square Enix and Obsidian Entertainment can deliver
* Pick from unique and highly customizable character classes with a wide range of abilities to choose from;
* Players will have weighty decisions to make that will impact their alliances, enemies and the culmination of the story

For centuries legionnaires have protected the nation of Ehb until they were betrayed and all but driven to the brink of extinction. Now that evil has returned to Ehb the people turn to the few remaining Legionnaires for the protection of the past . As an heir to the legion will you accept this plea for help? How it will all be resolved is up to you!