Cerroneth is a game and like all games there are rules. The entire rulebook can be found on the nearby link. It can be a bit overwhelming. For newer players we recommend looking at the New Player Guide. It pertains to certain sections of the rulebook to help understand the basics of the game.
We do have an addendum to the rulebook as well. These are rules that apply specifically to our campaign as we currently share the base rules system with our sister campaign, Aftermath.
Finally we have a link to our current play tests. Play tests are typically for advanced players for testing out but could impact rules and skills for any player. It is best to keep up to date on the current play test.