To cheat Sims needs in The Sims 3 , open the cheat console with Ctrl + Shift + C, type testingcheatsenabled true, and press Enter. Then you can either drag the need bars up in Live Mode, shift-click a Sim and choose a needs option, or use mailbox-based needs cheats depending on your setup.

Fast method

The simplest approach is:

  1. Open the cheat box with Ctrl + Shift + C.
  1. Enter testingcheatsenabled true.
  1. Go back into your save and drag the need bars upward, or use the hidden cheat menus that appear when you shift-click.

Useful options

  • Fill one Sim’s needs: shift-click the Sim and choose a needs-related cheat such as “Make Happy.”
  • Fill household needs: shift-click a mailbox and use the needs options shown there.
  • Prevent decay: some cheats or menu options can stop needs from dropping for the household.

Quick caution

Be careful with the Hunger need, because lowering it too far can kill a Sim.

Example

If you just want one Sim fully recovered after work, the usual flow is: open cheat console, enable testing cheats, shift-click the Sim, then choose the option that fills their needs.

TL;DR: Use testingcheatsenabled true, then drag needs up or shift-click the Sim/mailbox for needs cheats.