Yeah, it would be like the following:
You live on an island, and hunt, fish, do all sorts of things on it. A couple people you're related to also live on the island. Occassionally you fight, but its not really about land, which no-one owns.
Then some scraggly, small, desperate looking men wash up on shore. They ask if they can stay on your island.
There are only five of them, so you and your co-islanders say sure, and offer to help them set up shelter. In exchange for your genorsity, the men offer you some really cool metal implements that you've never seen before and cannot make your self.
Then, the men invite some other men over and they build a whole bunch of really permanent looking shelters. You're slightly uneasy, but the men keep trading with you so you don't mind too much.
Then, some other scraggly men take over the settlement from the men who were there before, they invites hundreds of people over and suddenly theres no room for you to live, much less hunt.
You confront the men, but they shoo you away, saying they 'own the rights to the land. A couple of your co-islanders continue to try to live on the island and hunt, but the newcomings shoot them.
Apparently the game 'belongs to them'.