Posted August 02, 2015

If by release date then
Divine Divinity
Beyond Divinity
Divinity II
Divinity: Original Sin
By continuity, I'm not sure to be honest.
Edit: and Ixamyakxim has the story continuity down as far as I know.

If you're gonna give Oblivion another try you might want to check out the Nehrim: At Fate's Edge mod. It's a complete overhaul that is apparently 20+ hours long. It's more like the Gothic series than Oblivion and from my experience (about two and a half hours in) it's very very well made, it could pass as a pro level release.