So instead the game rules would help you make that decision.

所以相反， 游戏规则会帮助你做出决定。

The trick is that, at least at the beginning, players will get nowhere without making agreements to collaborate - yet they are not bound by the game's rules to keep to these agreements.

游戏的诀窍在于，玩家至少要在游戏开始时与其他玩家达成合作协议，否则将无法取得进展——但他们是否必须遵守这些协议则不受游戏规则的约束。