How to Start a Ghost Family

Death is not always the end of your Sim. When a Sim dies you might get a call from the Science Facility, saying they can reverse death! Take your dead Sims remains to the Science Facility and click Restore Ghost. You get to continue playing your character! Unfortunately, your Sim is just a Ghost of their former self (pun intended). You can basically do anything with this Ghost Sim that you can do with a living Sim. You can even start a family of Ghosts. Just romance enough with another Sim and Try For A Baby which might be a success. There is a chance that the baby will be a Ghost, which can eventually lead to a household of Ghosts!