This paper explores Kant’s concept of dignity to claim that animals deserve moral consideration. The central notion in the paper is of that of “moral game,” a hypothetical scenario that illustrates our obligations to cooperate with rational agents and the natural world. This game displays how rational agents can collaborate with non-rational animals despite their inability to engage in reciprocal legislation. From reflection on what this game shows and by introducing a notion of “deep dignity,” I argue that rational beings (...) have a duty to respect the moral status of non-human creatures through indirect moral rights. (shrink)