Death by old age

When Sims reach the end of their lives, they will die of old age. This and Drowning are the only times in which a living Sim will not be able to plead with the Grim Reaper to bring the Sim back from death.

In the Sims 2 if a Sim had a long and happy life in which he/she fulfilled many wants and desires, thereby attaining platinum aspiration bar, the Grim Reaper and two Hula Zombies will appear and relaxing music will play. The Sim will pick up his/her suitcase and walk off with the Grim Reaper. If the Sim had a disturbed or troubled life, where few wants were fulfilled or many bad things happened, the Grim Reaper will show the Sim his/her hourglass of life, and the Sim will try to pull it away from the Grim Reaper.

In the Sims 3 old age happens less dramatically, with the Grim Reaper taking Sims away. Sims with certain traits, like Unlucky or Clumsy, can only ever die of old age, as the reaper finds their misfortunes too hilarious to take them any earlier and will simply revive them.