Fountain

Fountains entered The Sims series as decorative buy mode objects. These objects are available in The Sims, most expansion packs and some stuff packs in The Sims 2, The Sims 3, and The Sims 4. These always, If not often, are animated to spout water.

Fountain basins
In The Sims 2, numerious of fountains were present throughout expansion/stuff packs as objects, along with one that can only be place on ponds. If the player feel mischevious, the simmer can direct a Sim to drop some soap to cause overflowing foam reaction.

In The Sims 3, there is a fountain, particularly in outside of the science facility lot, that allow sims to sit on the edge of its concrete stone. The Seating operates just like a chair (sims can read a book or chat with one another).

Fountain pools and jets
The pre-patch of The Sims 3: Late Night and The Sims 4 since release added fountains to build mode. Fountains made with the fountain tool are essentially unusable pools, with a 'view' interaction in place of the 'swim' interaction, and can be created on both residential and community lots. The fountain tool also contains fountain objects such as water spouts, allowing players to customize their fountains. This allows the fountains to be more flexible than fountains available in buy mode. Unlike pool objects, the spouts can be placed out of the fountain.

In The Sims 3, build mode fountains were later included in a patch, so players without Late Night could have access to the same functionality, provided they had updated their game. The patch also added curved pools and fountains to players without the expansion. 'The Sims 3: Pets allowed dogs and cats to swim in fountains.

In The Sims and The Sims 4: Romantic Garden Stuff, Sims can make a wish and toss a coin into the fountain. In The Sims 2 aswell as The Sims 4: Romantic Garden Stuff, Sims can add soap to any fountain as a prank.