Taken from and inteview with EA’s Lucy Bradshaw:

Your planet that you’ve lived on has had a catastrophic event and you’re essentially plummeting to a new planet on the tail of a meteor. You arrive there and you start encountering new creatures. This is a new planet that you’ve got to make as your own. So you start in a series of quests and adventures in a kind of open world that you can take at your own pace. You start encountering other creatures and can interact with them in either combat or social [ways], but you can also do things on their behalf.

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