No universal "undo," but several mitigations exist depending on the cheat:
resetSim [FirstName] [LastName]Resets Sim's motives, inventory, and stuck states. Often reverses trait/skill cheats. Type in cheat console (Ctrl+Shift+C / L1+L2+R1+R2).
Exit to Main Menu → Load Game → choose save **before** cheat. Most reliable.
| Cheat | Reversal |
|---|---|
aging off | aging on |
freeRealEstate on | Buy lot normally (or freeRealEstate off + move) |
motherlode (money) | familyfunds [name] 0 or spend it |
testingcheats true | testingcheats false |
testingcheats on → Shift+Click object → "Reset Object (Debug)".modifyrelationship with negative values to revert.traits.remove_trait + traits.equip_trait original.Delete localthumbcache.package in Documents/Electronic Arts/The Sims 4 (or 3/2) — clears script cache, may fix lingering cheat effects.
Best practice: Save before cheating. Use testingcheats true only when needed.