I've only really played A Stitch In Time, as it works in Returns as well as Dragonfall. I love the fact that you can start turn mode manually as well as trade up items with your stash any time.

I did also try Shadowrun Unlimited but it was very buggy. Also I never found a throwing knife, and I put karma into that.

Any other recommendations?

My favourite Dragonfall campaign is Antumbra Saga.

I also like Nightmare Harvest.

Edit: Just noticed that Nightmare Harvest is actually a Returns mod. However, I used Dragonfall to play it and don't remember any problems.

I suppose this doesn't help you much, but I enjoyed Shadowrun Unlimited quite a bit. It's certainly rough around the edges, but I found the more open mission structure very appealing.