So far I've played:
All Infinity games.
Everything NWN.
Everything Fallout. (I ignore FO3; very, very wary of New Vegas.)
Arcanum.
Vampire: Bloodlines.
Deux Ex 1 & 3.
Both Drakensangs.
Divine Divinity, Beyond Divinity. So far, I find Ego Draconis a bit too much on the action-side to be in this catergory.
Anachronox.
Venetica.
Both Witchers.
Both Dragon Ages. (Arguably, DAII doesn't belong here.)
Jade Empire.
KotOR I & II.
Temple of Elemental Evil.
I place Lionheart, Vampire: Redemption, Might & Magic & Wizardry in the "action" category, given the huge amounts of combat.
I really like combat, but for this thread's purpose, I'd like to avoid the heavy combat games. On the same lines, I've excluded most JRPGs. I think the best definition is "games were you can also complete quests without going into combat areas", if that makes any sense.
I also excluded Gothic & Elder Scrolls, since the story tends to take a second seat to the sandboxing. Nothing wrong with that, but not what I'm looking for now.
Any recommendations you can make?
Thanks in advance!