It's difficult to find good exercises that allow you to examine conflict well without trivialising it (or turning it into a traumatic experience!)
Some exercises that are not directly related to conflict can be debriefed with conflict resolution in mind. For example Moon Survival and the Ugli Orange. Exercises where there is potential for limited resources or a competitive element can also be debriefed with conflict in mind.
Perceptual Positioning is also a very useful tool for examining conflict.
And of course, there's the Thomas-Kilman Conflict Style Questionnaire...
And the ready-written Power Hour session.
But here are some other useful courses of exercises and activities that you might want to check out...
- This Big Book of Conflict Resolution Games will be hard to beat - why not browse the 240 pages and see if anything jumps out?
- A nice blog with follow-on articles here is worth looking at, ESPECIALLY if you are working with a team (rather than a group of individuals)
- This website also outlines some nice exercises that you can use as a basis for a wider exploration of conflict.