The monarch of a realm could declare peace on one other realm at a time.
When it did exist, peace would have the following effects:
- +5% DP bonus against the realm your realm had declared peace.
- No prestige loss during attacks between realms at peace.
- -10% land gains.
While the prestige loss and land gains reductions were mutual, the +5% DP bonus only applied to the realm which had declared peace. If Realm #1 declared peace on Realm #2 and Realm #2 took no action, dominions in Realm #1 would have +5% DP against Realm #2 but Realm #2 would not benefit from a +5% DP bonus against Realm #1.
Realms often declared peace against realms which posed a significant threat (top-OP).