I've finished more of the Swamp area in Dungeon Siege. And as is turns out, really not a lot of wide open spaces afterall. It's a tough place, too.

There are always a lot of enemies in general, coming from all directions. Most of them being pretty powerful. But the most challenging situation is where you have the ones that can attack you with spells from a distance and keep summoning more enemies to attack you. Chasing after them first usually results in every other enemy in the area attacking you at once, usually causing more damage than you can heal with potions and magic.

I also went through an interesting place with lots of really tough undead enemies. That was a sidequest of sorts. But in general, I'm still considered to be in the Swamp area for now.