How to Make Your Save Last Longer — Tips for Keeping Sims 4 Saves Stable
Sometimes, you just want to play — no lags, no bugs, no townies with weird last names or Sims vanishing into the void. But the longer your save lives, the more digital clutter it collects: random NPCs, bugged objects, and invisible issues that slowly erode its stability.
A few mods, some manual control, and a bit of paranoia — and your save can live a long, happy life.
Always save only from life or build mode.
Clear game cache regularly:
◦ Delete localthumbcache.package and localsimtexturecache.package every time you start the game
◦ Periodically empty the contents of the cache, cachestr, and onlinethumbnailcache folders
Create backups of your saves
Clean out your Mods folder regularly — remove old, duplicate, or unused files
Don’t install what you don’t use — especially with modular mods like MCCC or RPO. Do you really need all modules?
Disable unused DLCs — if you don’t use them, they still weigh down the game
Controlling NPC Generation. Now that your game is technically healthy, let’s talk population. The Sims 4 loves generating Sims — way too many, way too often. Your worlds get overcrowded fast. Instead of outright banning generation (which can cause bugs or missing role Sims), it’s better to apply moderate limits. Helpful mods:
• townieoverhaul_lessfame by bienchen — reduces excessive townie generation
• NPC Generation Overhaul by Vicky Sims — improves the diversity and logic of generated NPC families
• MC Command Center — Pro tip: in MCCC settings, set homeless generation to 0, not -1.
Cleaning Out Digital Junk. Now let’s talk about what really weighs down your save over time: old Sims, bugged items, stuck lots, and unused clutter sitting in inventories. For a deep clean, try:
✦ MCCC > Mailbox Cheats > Sim/Object Deletion
◦ Cull ghosts, region-specific Sims, strays, dead relationships — just make sure to back up first!
◦ Debug object cleanup — destroy any weird stuck objects in the world
✦ Delete heavy lots — especially if you're not using them
✦ Clean out household and family inventories — remove forgotten toys, old junk, or broken objects
✦ Clear the notification wall — fewer lag spikes and cleaner memory
✦ Photos — do not store them in large volumes. They accumulate quickly and weigh down the save.
Click on the link below to read the full article.
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