Death Forms in the Sims Series

The Sims
'''Ever since The Sims: Livin' Large Ep was released death has been a part of the sims but as The Sims turned into The Sims 2 & The Sims 3 more death forms were introduced and more than the basic: fire, drowning, electrocution, disease, old age, & starvation. So anyway enjoy and feel free to edit.'''

The Sims: Livin' Large

 * Fire: If a Sim is on fire for a period of time, he/she will die. It is also possible for a Sim to randomly burst into flames via spontaneous combustion, though that is very uncommon.
 * Drowning: Drowning Sims is one of the two easiest forms of death in The Sims. A sim with low energy need could possibly drown. He/She could also drown if there was no way to get out of the pool aka no ladders in the pool.
 * Electrocution: A sim with low Mech skill will possibly get electrocuted when trying to repair broken electricity using objects and if the sim in question is standing in a puddle he/she is just asking to die.
 * Starvation: A sim who's hunger need drops to 0 will die. This is one of the two easiest forms of death in The Sims.
 * Disease: When a Sim plays with a guinea pig with a dirty cage, the guinea pig may bite and infect the Sim with a disease. The disease is contagious, and a Sim infected with it will die if not treated.
 * Fright: It has been reported that Sims can die of fright if they see a ghost while their hunger meter is low.

The Sims: Unleashed & Makin' Magic

 * In The Sims: Makin' Magic, a Sim who has been turned into a toad may be eaten by a dragon. Cats may also eat toadified Sims if The Sims: Unleashed is installed. When Sims die in this way, they will not be visited by the Grim Reaper, most likely there is no body to take.

The Sims 2
'''The Sims 2 greatly expands death. The game also helps you identify how the ghost sim died,"But How?" so you ask, with colors of course. But not only that The Sims 2 Eps expand death forms, too. In The Sims 2, some death forms come back from The Sims.'''

The Sims 2: Base Game

 * Old Age: When Sims reach the end of their lives, they will die of old age. This is the only time in which a living Sim will not be able to plead with the Grim Reaper to bring the dying Sim back. If a Sim has platinum mood at the time of death, the Grim Reaper and 2 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 its hourglass of life and the Sim will try to pull it away from the Grim Reaper, but to no avail. If the Sim died of old age with a Platinum Apsiration bar, he or she will leave behind a white Gravestone with a gold border. A gold picture of the Aspiration they had will be on the front of the grave. This is the ONLY way to get it.
 * Disease: If a Sim uses the Biotech station with low hygiene, or while in a poor mood, there's a chance they will get a mysterious disease, which may be fatal.
 * Starvation: If a sim's hunger need drops to 0 he/she will die babies, children, & toddlers will be taken away by the social worker if their hunger need gets to low.
 * Fire: If a Sim with a low cooking skill cooks a meal there is a chance it will catch fire. Similarly, if the food is left in the oven by a careless Sim or, most likely, a Nanny or a Butler, the food will also catch fire. If there is no fire alarm present, it is up to the Sim to put out the fire. This can be done by calling the fire department or by clicking on the fire and choosing "Extinguish". There is no way to buy a fire alarm during a fire, as build mode and buy mode are disabled. The longer a Sim is in proximity to the fire (and because Sims are autonomously brought to the fire to perform the "panic" action, a.k.a. "the Simish Fire Dance", they will be) the greater the chance is that they will catch fire. When three of their motives are completely depleted the Sim will die. In Apartment Life, if a fire breaks out on an apartment lot, all household Sims venture out onto the street, thus, minimizing their chances of being burned. The chance of dying in a fire is also minimized if the Sim has finished studying about Fire Safety. Babies and toddlers cannot die from fire, but children can.
 * Drowning: If a Sim uses a swimming pool without a pool ladder while they are in it, they will eventually use up their energy and die. Drowning is one of the few ways in which a child can die.
 * Flies: If a residential lot is messy with many fly-infested objects, there is a chance all the flies could form a killer swarm when a Sim steps over a fly-infested object and eat the Sim alive.
 * Fright: If a Sim sees a ghost, his/her motives fall drastically. If the critical needs, (hunger, energy, etc.) fall far enough, the Sim will die. Also, if The Sims 2: Nightlife is installed, and a Sim peeks at a vampire while in its coffin, the Sim's motives will fall drastically as well. However, a child cannot be killed by fright and will wet themselves or pass out, instead.
 * Satellite: While a Sim is watching clouds (daytime) or stargazing without the telescope (nighttime), there is a very remote chance that a satellite will fall on him/her. The satellite can be sold in buy mode, but it devalues quickly, so waste no time, sell it right away. Children cannot die from this, but it is one of the few things that can kill a Servo. A sim can also die by satellite while on vacation.
 * Electrocution: If a Sim isn't so good with Mechanical things and tries to repair broken electrical items, he/she might die. Toddlers can be killed by electrocution with Rodney's Death Creator. This is the only way to kill a toddler, without mods. Strangely, it even has its own animation
 * Death For No Reason: Some Sims die for no reason, the "mysterious choking death". This is a bug that has been fixed by patches and in later expansions. It is caused by a mistake in the disease coding. In the unpatched base game, pregnant Sims were extremely vulnerable to sudden death.

The Sims 2: Downloads

 * Scissors: If the player downloads Running with Scissors Playset from the Maxis site and a Sim runs with them, there's a chance he/she may fall and get stabbed.

The Sims 2: University

 * Cowplant: Sims who attempt to 'take the bait' the hungry Cowplant offers will be eaten alive. The Grim Reaper does not come when Sims are eaten by the Cowplant. Instead, the tombstone will come directly out of the Cowplant's mouth.

The Sims 2: NightLife

 * Sunlight: If the vampire is exposed in the sun for too long, he/she will die.

The Sims 2: Open For Business

 * Rally Forth: If a Sim with the "Rally Forth" business perk uses it when their needs are too low, they will eventually choke from shouting into the Rally Forth megaphone and die.
 * Elevator: If the elevator breaks down while Sims are in it, and their needs fail, then they will die.
 * Evil Kite: The kite was made poorly and attracts lightning when flown. This works like the electrocution death and will not kill children.
 * Evil Snapdragon Bouquet: If a Snapdragon Bouquet was made poorly it will be an Evil Snapdragon Bouquet. An Evil Snapdragon Bouquet will decrease Sims' motives. Given enough time, one or more Evil Snapdragon Bouquets can drop a Sim's hunger motive to the point where he or she starves to death.

The Sims 2: Seasons

 * Hail: When at least 4 needs drop below 50% while standing in a hailstorm, and the Sim is pelted by hail too long, he/she will die. When the ghost of the Sim who perished is mad, hail will pop out of his or her body.
 * Freezing: If a sim is not wearing the appropriate clothing during the winter and is outside the sim in question will freeze to death.
 * Lightning: If lightning were to hit a Sim who is using a hot tub or pool, that Sim will die if his or her needs are low.
 * Wishing Well: If a Sim wishes for money from the wishing well and the wish fails, the sack money will fall on his/her head (and will only contain §50). This will cause a large drop in motives, and if the Sim's hunger need is too low, he/she will perish. The actual death is from starvation, and the ghost reflects this.

The Sims 2: Apartment Life

 * Murphy Bed: When opening the Murphy bed, if a Sim has less than 5 body skill and -70 or less mood, there is a 5% chance that it will fall on and crush the Sim, killing him/her. Their ghost avoids the bed that killed them.
 * Throne of Light/ Claw of Darkness Throne: When a witch/warlock with good alignment sits on the Claw of Darkness Throne or a witch/warlock with evil alignment sits on the Throne of Light, it causes their motives to drastically decay. This can sometimes deplete the hunger motive, which will cause the Sim to starve. However, if free will is enabled, they usually hop off the throne and try to boost their motives.

The Sims 2: Console

 * Starvation: When a Sim goes a long time without eating they can starve to death.
 * Electrocution: When a Sim tries to repair an object while standing in a puddle or with a low repair skill they have a chance of being electrocuted.
 * Fire: When a fire starts and a Sim is unfortunate enough to be caught in it they will most likely die.
 * Dancing on own Grave: When a Sim dies and is brought back to life their gravestone will still be on the lot. The Sim can dance on their own grave, prompting them to be set on fire and die again.
 * Vitalize: If a Sim use's a vitalize machine while needs are low there is 50% chance they will die.

The Sims 2: PSP

 * Starvation: When a Sim goes a long time without eating they can starve to death. Vampires' hunger need will decrease faster in the sun, which can cause them to die from starvation faster.
 * Headache: If a Sim's headache need is not filled, he/she may die after a long period of time.
 * Vitalize: If a Sim uses a vitalize machine while their needs are low there is 50% chance they will die.
 * Drowning: If a sim relaxes or sleeps in the water bed they have a slight chance of facing Death.

The Sims 3
The Sims 3 death forms will be avaliable after the release of the last Ep