promotional bannermobile promotional banner

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

Big 3 Astrology Mod 1.4.5

  • R
  • Feb 15, 2026
  • 2.60 MB
  • 1.9K
  • Life and Death+2

File Name

PlumAntics_Big3Mod_1.4.5 - CF.zip

Supported Versions

  • Life and Death
  • Seasons
  • 1.121.361

1) Modular Add-on Structure

Big 3 is now organized more cleanly by system so you can mix and match more easily:

  • Core
  • Engine: Calendar
  • Addon: Retrogrades
  • Addon: Transit Rulerships
  • Addon: Lunar Moods
  • Plus existing feature packs (Compatibility, Houses/Progressions, Skill, etc.)

This makes the whole mod easier to maintain and easier for players to customize.

2) Stronger Astrological “Baseline” Behavior

Planets are no longer just marker traits.
I added a new transit/rulership layer that runs cyclically with the calendar:

  • planet-in-sign baseline effects now rotate through the zodiac cycle
  • rulership matters (Mercury/Gemini-Virgo, Venus/Taurus-Libra, etc.)
  • retrogrades still exist as the intense layer on top

So instead of astrology only feeling “loud” during retrogrades, there’s now a quieter persistent influence every day.

3) Houses & Progressions Expansion

Houses/Progressions has been expanded with:

  • progressed Sun support across signs
  • progression assignment and routing improvements
  • more progression-related action tuning
  • continued integration with calendar/retrograde timing

This gives long-term character arcs more identity over time.

4) Aspirations Expansion + Cleanup

Aspirations got a major pass:

  • new Karmic Soul Path / nodal-style aspiration content
  • additional objectives and rewards
  • icon and tuning cleanup for consistency/readability

This is one of the biggest content expansions since January.

5) Compatibility Reliability Improvements

Sun Compatibility cleanup logic was tightened so old tier states clear more reliably before new ones apply.
This reduces conflicting compatibility results and improves consistency.

6) Retrograde Tuning Adjustments

Retrograde behavior was refined (including Mercury intensity path adjustments) to reduce noisy stacking and keep the system clearer and more intentional.