Sinfar's systems support the manipulation of factions, including custom ones. Each faction is given a unique ID that can then be given different reputations with other factions.

See: https://nwn.sinfar.net/cstmfac_manageform.php

int GetFactionId(object oObject);

This will return the Faction ID of oObject.

Default Factions:
1 = Hostile
2 = Commoner
3 = Merchant
4 = Defender

void SetFactionId(object oObject, int nFaction);

This will set oObject's Faction ID to nFaction.

— murdrkitten 2019/03/26 16:56