In some "100 Baby Challenges" or extremely long legacies, the game can sometimes lose track of distant cousins. Mods are occasionally used to fix or bypass broken relationship flags. Technical Risks and Game Stability
WickedWhims by TURBODRIVER is the most famous adult-oriented mod for the game. While its primary focus is on explicit animations and personality archetypes, it also handles relationship settings. The Sims 4 Incest Mod
Always keep a copy of your "Saves" folder before installing adult mods. In some "100 Baby Challenges" or extremely long
Within the MCCC WooHoo sub-mod, there are settings to "Allow Family Play." While its primary focus is on explicit animations
Created by Deaderpool, MCCC is often considered the "master controller" of The Sims 4. It provides a massive suite of tools to manage population, outfits, and relationships.
Modifying the family tree logic is a heavy task for the game engine. If you have multiple mods trying to control the same social interactions, you may experience "Last Exception" errors, which are the game’s way of saying the code has crashed in the background. Safety and Ethics in the Modding Community