Alien abduction

Alien abduction is an event that can happen in The Sims, The Sims Bustin' Out, The Sims 2, and The Sims 2 (console) It can happen to a Sim who is using a telescope to stargaze at night. The abducted Sim's motives go haywire while they are on board the craft, and they return a few hours later.

The Sims
In The Sims, an abductee will simply return with a different personality.

The Sims Bustin Out
In The Sims Bustin' Out, an abductee will return after about 8 hours with lower needs. Nothing else will happen to him or her.

The Sims 2
In The Sims 2, Sims will only be abducted if they are using the Farstar e3 telescope. If the abducted Sim is an adult male, he will always come back pregnant, so long as he is more than 5 days from becoming an elder, and there are less than 8 household members when he is abducted. In three days, he will give birth to a half-alien baby whose other parent is the unseen NPC Pollination Technician. To be abducted (or have a relative abducted) is often a want for Knowledge Sims, and a fear for others. The odds of being abducted are very low, on the order of 0.05% percent for each animation cycle.

If the Nightlife Expansion Pack is installed, a Sim who has been abducted at least once may be abducted while using the ElectroDance Sphere on medium or high, even if he or she was a teen when abducted the first time. Each Dance Sphere will only trigger one abduction, but the odds of abduction are much higher than with the telescope.

In FreeTime, all telescope actions carry a chance of alien abduction, but the Aspiration Reward for Knowledge, Summon Aliens, allows a Sim to create a spotlight with a flashlight and telescope, which greatly increases the chance of abduction.

Aliens are very important to the Strangetown story (especially with The Curious Brothers), and play a lesser part in Pleasantview except in the case of Bella Goth and the Caliente Family.

If you want a Sim to be abducted, use the "boolprop" cheat, then shift-click any telescope, and then select be abducted. This cheat doesn't work after Seasons or Bon Voyage is installed. It also will not result in the Sim having the memory of alien abduction, but will still result in pregnancy for male adult Sims more than 6 days from Old Age.

The Sims 2 Console
Alien abduction works as Bustin' Out, except that abducted Sims will throw up and will yell at other Sims for no apparent reason.