سیمز ۳
بسته الحاقی

برای این بازی تاکنون بسته‌های الحاقی زیادی ساخته و روانه بازار شده‌اند که از مهم‌ترین آن‌ها به موارد زیر می‌توان اشاره کرد:
| عنوان | تاریخ عرضه | Includes | Life State | New Careers |
| --- | --- | --- | --- | --- |
| World Adventures |  | Additions: New traits, items, clothing Features: quests, tomb exploration at three new destinations, photography, new build functions including the basement tool, nectar, fireworks, shops, vacation homes. New vacation worlds: Champs Les Sims (France), Al Simhara (Egypt), Shang Simla (China) | Mummy | None |
| Ambitions |  | Additions: New careers, skills, traits, and items Features: control within work (professions and selected careers), laundry, tattoo system, skill-based self-employment. New world: Twinbrook | Simbot (Robot) | Architectural Designer · Education · Firefighter · Ghost Hunter · Medical · Investigator · Stylist · Self-Employed |
| Late Night |  | Additions: New careers, skills, traits, clothes and accessories, furniture, and cars Features: bars, night clubs, penthouse suites, hot tubs, subway portholes, elevators, breast and muscle definition sliders, Group, Band, Butler, zodiac signs, new swimming pool design tools, height adjustment for wall objects, fountain tool, the ability to become a vampire. New world: Bridgeport | Vampire | Film · Band Member |
| نسل‌ها |  | Additions: New playground equipment, mid-life crisis, new interactions, new traits, and new profession Features: Pranks, body hair for males, new types of celebrations (i.e. birthday/teen/bachelor parties, weddings, slumber), memories, graduation ceremonies, prom, imaginative play, potions, spiral staircases, water slides, boarding schools, pillow fights, strollers, canes for elders. | Imaginary Friend | Daycare |
| حیوانات خانگی |  | Two editions: Regular and "Limited Edition" Additions: New pets, new animal and sim traits, Create-A-Pet, new lifetime wishes and rewards, new interactions, new items, new venues and community locations, new pet and sim skills Features: Controllable animals (cats, dogs, horses) and non-playable creatures (see NPC section), pet contests. New world: Appaloosa Plains | Unicorn | Equestrian |
| Showtime |  | Three editions: Regular, "Limited Edition" and "کیتی پری Collector's Edition." Additions: New stage performance careers (singer, acrobat, magician), new objects (pool table, golfing), new sim traits/lifetime wishes; Katy Perry only: downloadable stage venue, fruit-themed clothing, items, and stage props Features: Social features, stage decoration, singing, gigs, new 'Achievement System', Simport which allows importing and exporting of celebrity sims. New world: Starlight Shores. | Genie | Singer · Acrobat · Magician |
| ماوراطبیعی |  | Three editions: Regular, "Limited Edition" and "Origin Decor Edition" Additions: New items (alchemy station, rocking chair), new clothing options including wings, new traits. Features: Supernatural life states including witches, werewolves, fairies, vampires, and zombies; creation of supernatural sims directly in Create-A-Sim. New world: Moonlight Falls. | Witch, Werewolf, Zombie, and Fairy | Fortune Teller |
| Seasons |  | Two editions: Regular and "Limited Edition" Additions: New skills (soccer/snowboard), new traits, seasonal celebrations Features: Weather, seasons, new outerwear clothing category. | Alien | Test Subject (Aliens Only) |
| University Life |  | Additions (confirmed only): New skill (bowling), new traits, college sub-neighborhood. | TBA | Art Appraiser · Sports Agent · Video Game Developer |
| Island Paradise |  | TBA | TBA | TBA |
| The Sims 3: Into the Future |  | Article for this page is currently under review. | TBA | TBA |