xcrissxcrossx
Prince
As the very first civic you start out with, it should be particularly weak. Even the definition says it is hard to maintain a large empire with a tribal society. Despite this, It is pretty much better than all of the society civics up until Liberal, when you discover liberalism. I nerfed my own game by adding -25% great people, +1 local instability per turn, +2 national instability per turn, and taking away the culture bonus for tribal society. Even with these it is still competitive with the other society civics (if you have a lot of camps, or want the production bonus without the major GP malus of caste).