What are some good roleplaying related games?

[Sarigar]

What are your favorite gaming related products in these categories:
World Building not specific to D&D?
Character building system not specific to D&D?
World Building specific to D&D?
Character building system for D&D?

 

[shadowlight]

What are your favorite gaming related products in these categories:
World Building not specific to D&D?
Character building system not specific to D&D?
World Building specific to D&D?
Character building system for D&D?

Age of Empires and Empire Earth have great map editors that you can use for world building...

 

[eliandi]

currently I use NWN because I run 3e D&D

previously I used general ideas and pics from the net to run a SW campaign.