You gotta kill someone, uhm... some sim on your lot. If you don't want to sacrifice any of your sims you can always kill off a townie or any sim that happens to pass by the house. Or if you have another family with active ghosts on their lot, play them & invite the sim over at night in hopes of them getting spooked. Good luck!
Several easy ways: - fence them in. Let them walk into a room, take away all exit doors. They'll starve to death. - drown them. Make them go into the pool, take away the pool ladder. They'll drown. - burn them. Take away all fire alarms, make them cook or start a fire in a fireplace, and let them burn. - electrocute them. Let a Sim with low skills try to repair a broken dishwasher, trash compactor, or computer. However, I would be cautious. Your Sim may have the want to see a ghost, but the ghost might very well scare your or other Sims to death - literally. If you do a search on this forum, you'll find many more posts about what ghosts did to people's Sims. Here's a list of what the ghost's colours mean: White: died of old age Transparent: died of hunger Red: died of fire Green: died of disease Orange: crushed by a satellite Purple: was attacked by flies and died Blue: drowned Pink: frightened to death Yellow: electrocuted
all of my sims 2 ghosts are red and none of them have ever died of fire. they die of old age or starvation.