iBase Modern Approach to Basic RP > Combat | DM / Character | Equip
The outcome of a combat may be victory, retreat or death. It also includes the Surrender Outcome in iBase mechanism whereby they lose treasure and therefore, experience points, in order to bargain for their freedom and not have to die in a fight. While it seems like most foes would never accept such a situation, it is a mechanism that leveraged the known languages of intelligence and that really was only factor intelligence played in the entire game other than as a minimum stat for magic users.
Surrendering can take multiple forms. A standard ransom of the [Cost Portion]/10 *Character Level can be used (or whatever they can negotiate).