The Sims: Livin' LargeEdit
In The Sims: Livin' Large, if a Sim prepares a plate of cookies near a Christmas tree and a fireplace, and if all of the Sims in the household are asleep by midnight (not including pets), Santa will appear at around 3:00 AM. When Santa comes the buy mode and build mode options are not available (much like when a fire or burglary occurs). He will only appear when all the Sims in the household are asleep. Like the burglar, he does not have any social interactions, and Sims will not be able to interact with him. Santa will leave a "present" for each member of the household. Sims can unwrap these for Fun, but they will not actually contain anything. However, Santa will also leave a real present for the household, and those presents range from chess sets to televisions.
The Sims 2: Holiday Party PackEdit
With The Sims 2: Holiday Party Pack or The Sims 2: Happy Holiday Stuff, Santa Claus (the game spells it as Santa Klaus) will appear if there is a Christmas tree on the lot and Santa cookies were baked. Children can meet him, and he will leave one present. If there are cookies left for him to eat he will leave a good present, otherwise he will leave coal. A downside is that he will use the toilet constantly. The first time a Sim interacts with Santa Claus, they will instantly become best friends, even though he will not appear in the relationships panel and cannot be called using the phone. Oddly, in his in-game image he looks a lot like Father Time and the Therapist, whereas in-game he has a completely different face. Despite having grey hair, he has the adult male voice.
Making him selectable, adding him to a family, or doing anything with him outside of his designated purposes will cause game corruption, as his character file is located in the objects.package file, and is the same for all neighborhoods. A much safer way to play as Santa is to create him in CAS, as his hair, beard and outfit are available there, as well as his face paint. However, he has a very different facial structure than any of the default faces which requires lots of skill and precision to recreate.
An exact replica of the Therapist who has the same facial structure as Santa can be downloaded here. This will save players the trouble of replicating Santa's facial structure. When viewing Santa's character data in SimPE, his personality and interests will appear blank. He will have a random aspiration if he is added to a playable household using cheats, and the household is saved, exited, and reloaded. The same occurrence happens with Father Time. However this is strongly not recommended, as it can cause game corruption.