If one concider the life cycles of what we observe as organic life in light of evolution, it starts to resemble a game. We know that life started at some point, it did not magically appear, and we know that life on Earth will end once the planet is sterilized by the sun in a few billion years. Life on Earth is therefore not just a game, it is actually a PermaDeathmatch game. The winning rule in a permadeath match is simple: Outlive everyone.
However, there is a solution to a closed end game. Open the end. Then you move to a Sandbox game which never ends. The best strategy for a Sandbox game is usually to cooperate. The only way humans can change the game is to focus our minds as to how leave this planet at some point.