This article lists all features that existed in a beta version of games in The Sims series and features that were planned and showed in concept art, but got cut later in development.
The Sims 2Edit
Early beta footage of The Sims 2 reveals that there was precipitation in the form of rain and lightning planned for the base game. It was also shown that Sims could die from lightning strikes whilst in hot tubs during thunderstorms.
Big Boss scenarioEdit
According to strings viewed in SimPE, the Big Boss NPC was planned to be added to the game alongside his own scenario, similarly to the Headmaster, where Sims would've invited him for dinner and given him a tour of their house.
The Sims 3Edit
There was a clothing store rabbithole planned for The Sims 3, where Sims probably were able to purchase clothes like in The Sims 2. It was shown in some early screenshots and trailers of The Sims 3. It got cut because all the CAS clothes were already unlocked in the beginning of The Sims 3. The model of the rabbit hole resembles that of the spa rabbithole of the final version.
The Sims 4Edit
Get Together Edit
Phone cases Edit
There were phone cases planned for The Sims 4: Get Together. This can also be seen on the cover.
Harvest stands can be seen on an early concept art of The Sims 4: Get Together. Sims could probably purchase and/or sale harvestables using these stands.