Nowadays, it is exceedingly rare for a game to be released without some sort of combat system. While exploration-driven games like Journey may avoid including violent gameplay elements, it is not common for a game without combat to also lack some central gameplay mechanic other than exploration.
In the MMO genre in particular, there is a tendency to accept combat as a sort of given. Developers have taken notice. Australian-born Wander is branded on the company website as the first MMO of its kind: "a non-combat, non-competitive, collaborative multiplayer game."
Interested? Head past the jump for more!