Hello everyone,

Here is an interesting article about how to use data mining in game design:

http://www.gamasutra.com/view/feature/2816/better_game_design_through_data_.php

The authors claims that data mining can help MMOG design by:
1. To balance the economy
2. To catch cheaters
3. To cut production costs
4. To increase customer renewal


Besides that, I found that some people provides datasets from the StarCraft game:

http://eis.ucsc.edu/StarCraft_Data_Mining

But I did not find datasets for other games.

Best,

Philippe