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Plum Antics' Simstrology Mod Core

A modular, Maxis-friendly astrology system for The Sims 4 that introduces Sun, Moon, and Rising traits, personality-linked mood behavior, automatic sign assignment, and optional deeper systems like Planets, Elements, and Modalities.

File Details

PlumAntics_Big3Mod_1.4 - CF.zip

  • R
  • Jan 14, 2026
  • 1.49 MB
  • 1.0K
  • 1.120.140

File Name

PlumAntics_Big3Mod_1.4 - CF.zip

Supported Versions

  • 1.120.140

Big 3 Mod v1.4 — Key Changes

  • Sun sign–based autonomous social behavior & compatibility
  • Harmony & friction system with buffs, relationship bits, and notifications
  • Global retrograde phase synchronization across households
  • Fixed childhood retrograde application
  • Trait-specific commodities for improved timing & autonomy
  • Clear behavioral separation of Sun vs Rising roles
  • Expanded cheat system (Sun, Moon, Rising replacement)
  • Under-the-hood stability improvements supporting future systems

    Installing V1.4

    Best practice:

    • Note your household's signs
    • Remove old mod files
    • Start your save WITHOUT installing (this wipes old buffs, commodities, etc.)Install new mod filesCtrl+click on sim to cheat add sun, moon and rising cleanly (you COULD theoretically just cheat update your signs, but the above ensures a clean slate).

    I did account for migrations in the new files, but there may be some instances where functions that rely on Sun or Rising or particular may not "stick." Much of the code was optimized in this version to allow for better modularity later. The method above may be helpful if you are not seeing anything different. Moving forward, the core mod is not likely to change much, and most additional features will be in add-ons.