Model train

Model train sets are Fun objects in The Sims, The Sims 2: FreeTime and The Sims 3: Supernatural.

Urchineer Train Set by Rip Co.
The Urchineer Train Set by Rip Co. is a Fun object in The Sims that can only be used by children. It is a small model railroad, manufactured by Rip Co.

OCD Systems SimRailRoad Town
The OCD Systems SimRailRoad Town is a Fun object in The Sims that can only be used by adults. It is larger and more detailed than the Urchineer Train Set, and is on an elevated table so adults don't need to get on the floor to play with it.

The Sims 2: FreeTime
Model train sets return in The Sims 2: FreeTime with the Round and Round Model Train Set. Unlike the model train sets in The Sims, players can not only have Sims play with the train, but can have them add landscaping to the train table. However, they cannot choose where landscaping items will go, and the town, trees, and signs are not added all at once, but in stages. The option to add signs is really an option to add scaled-down versions of neighborhood decorations, only the first stage actually adds signs. The second stage adds wind turbines, which turn when the train is operated, while the third adds a water tower. The water and mountain occupy the same space on the table. The mountain can be added if the water is present, but will cover it.

In addition to being a fun object, the Round and Round Model Train Set also builds enthusiasm for the Tinkering hobby. A model train set can be found in Will's Garage.

While only one Sim at a time can operate the train, other Sims can watch. If a Sim is adding or removing landscaping features, another Sim can help.

When used on a residential lot, there is a 2% chance that it will catch fire each time it is operated. A mod available at SimWardrobe can prevent this.

Notes on placement
Any side of the train set can be placed against a wall, but Sims will not be able to operate the train if either the side with the control lever, or the shorter side near the control lever, is placed against a wall. Also, Sims will walk between those two sides when adding or removing landscaping features. If two Sims are adding or removing landscaping features, the second Sim may walk to the shorter side opposite the control lever, so placing that side against a wall may interfere with the "Help Add" and "Help Remove" interaction. Placing the long side opposite the control lever against a wall will not affect Sims' ability to use the train set.

The Sims 3: Supernatural
The Sims 3: Supernatural adds the Very Small Train Set. The train set is a miniature version of The Sims 3's Sunset Valley. Sims can operate the train to enjoy a small mood boost, while the train set comes to life. Fairies have an additional option when using the train set; they can ride the train by shrinking down and hopping aboard.