On Sims 3 Generations, where is the treehouse?

You have to go into buy mode and click sort by room and go to the section called outdoors (the last section), click on the flying football thing, and scroll down. There will be 3 treehouses, one called Kid's Clubhouse for 1,000, one called Sci-Fi Hideaway for 1,500, and The Princess and the Pauper for 1,500. Hope I helped! =)

Buy A Treehouse

The Sims 3: Generations is the fourth expansion pack the the Sims 3 series and I must say, it's pretty good. I got it on the day of its release via Amazon. Now I'm no game reviewer as I'm more of a music reviewer (aspiring music journalist here) but I'll try my best to describe this game.

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NEW FEATURES THAT COME WITH THE GENERATIONS EXPANSION: ■New interactions: Pranks, ҍօ.օҍy traps, ghost stories, star gazing, make-believe/dress-up (with new animal and fairytale-inspired costumes for children, similar to outfits in The Sims 2: Family Fun Stuff, such as an astronaut, dinosaur, or princess, gift giving, Ask/ Be asked to Prom interaction, Bedtime Stories, Nightmares, and Field Trips, ask on a date interaction. ■New objects: Water slide (similar to a Slip 'n Slide), spiral slide, Video Camera (and the ability to watch Sim-created videos on the Sim's TV), larger family portraits, wedding arch, shampoo, tree house, bunk bed, stroller, spiral staircase, new playground equipment (such as a see-saw,spring ride and sandbox), sleeping bag, lava lamp, chemistry set, and 3 styles of cane and 2 styles of walking for Elder Sims, individual age sliders in Create-a-Sim ■New traits ■Rebellious: Sims with a rebellious streak can make trouble pulling off various pranks, like doorbell ditching, adding hair dye to their sibling's shampoo, making the toilet explode and so on. ■Nurturing: Sims with the nurturing trait will be great at taking care of kids and can punish naughty Sims by giving them timeouts, banning video games, and grounding them. ■New parties: School Dances, Prom Night for teens, high school graduation, teen house parties, bachelor/bachelorette parties (with the return of entertainers) new wedding ceremonies, and slumber parties. ■New Profession: Daycare. ■New creature: Imaginary Friend. ■New schools: Sims can send their children and teens to 1 of 5 specialist boarding school such as military school, sports academy, art school, hippie school or a posh prep. ■Field trips for children. ■WooHoo in new places: the shower and tree house. ■New memory system: Return of memories tracked in a scrapbook (and online) and a feature to make memories. ■New Rabbit Hole: Treehouse. ■Dating returns to the game. ■Teen Sims can now be taught to drive by their parents in the Blu Van. ■New After School Activities: Dance classes (including Ballet Classes), Music Classes, and more. ■Adults can experience a mid-life crisis. ■Mr. Mysterious Gnome can age and have a "gnome family".