Soldato
It has side quests, the guy talks about them with the devs on the video I linked (they mention a side quest involving a little girl and her horse), its just that you have to "find" the side quests yourself via exploration rather than having a traditional ? marker on the map which you run to and then on to the next ? marker and the next etc.
That sounds interesting.
Makes exploration something worth doing, which is obviously the intent.