Is There a Cheat for More Than 6 Sims in a Household in The Sims 3?

No official cheat exists. The 8-Sim limit (6 playable + 2 pets) is hardcoded in the engine for performance and UI stability.

Unofficial Workarounds (Use at Own Risk)

• Mods (NRaas MasterController / MasterController Integration):
  • Allows "Set Max Household Size" up to 50+
  • Requires NRaas Core Library. Stable if configured correctly
  • Risk: Save bloat, routing failures, CAS UI overflow, legacy save corruption
• "Fake" Large Households:
  • Move multiple families onto same lot (Edit Town → Merge Households)
  • Use "Roommates" (University Life) or "Butlers" (Vintage Glamour) for controllable non-household Sims
  • Club system (Get Together) simulates group dynamics

Better Alternative

The Sims 4 (base game free) supports 8 Sims + unlimited pets natively, with mods (MC Command Center) raising it further. Engine handles larger households more gracefully.

If staying on TS3, backup saves before installing MasterController.