[4t2] Sixam - Secret Alien World for TS2!

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Ever played TS4 Get to Work EP and visited the secret alien world of Sixam and wished you could also do that in TS2? Well, I’ve got something for you then!

Welcome to Sixam!


Sixam City, a thriving metropolis on the planet of Sixam, home to Sixam Academy, a prestigious intergalactic university that provides special training for aspiring students to become Birth Queens, Colony Drones, or even the latest innovation in alien technology: Pollination Technicians. Renowned for its cultural diversity and interstellar expeditions, the city nurtures a community focused on curiosity, inclusivity and innovation.

Yes, I recreated the secret alien world from TS4 for TS2 as a custom university subhood! Why as a university subhood you may ask? Well, I tried to keep the original vibes of Sixam of it being an "unlockable"/visitable place your sims can explore as much as they want before returning to their homeworld.

How can you do that you may ask? Well, after graduation, you can make your sims stay in the university subhood and "unlock" Sixam using Lamare's YAs can enjoy maternity (and all that) mod, as well as Lamare's Pets at University mod! That way, you could still play your sims as you would normally do in a main hood, i.e. have them age, get jobs, get married, have children, raise them until they're teens and finally send them to college again. You may also just return to your hometown anytime you want, just bear in mind that it's one way though, so there's no way back! ^^

Speaking of "original vibes", it's always night here on Sixam, just like in TS4! Not only does this neighborhood has a custom skybox, but also its own custom lighting file that makes all lots in this neighborhood night. ^^


Update (June 24th, 2026)
  • As requested, I finally uploaded a main hood, as well as a downtown version of Sixam Academy, ahem... it's Sixam City now! All the original playables have graduated and are adults now... and the drama goes on! It's like they never left! XD

  • The main hood/downtown versions do require all EPs/SPs though since I wanted to include apartment lots. I miiight do an alternative version without AL one day, so that TS2 Super Collection users can also use it. The university version is still Uni+NL+OFB EP only though.

  • To make things easier in the future, I've decided to split the 4t2 Sixam CC in 2 downloads, while the custom skintones are zipped together with the neighborhood. The skybox & ocean floor are no longer included in this upload and need to be downloaded separately here. So, in case of future updates of the skybox/ocean floor/4t2 Sixam plants, please check the other download page.

  • Speaking of the 4t2 Sixam plants, I made over the entire neighborhood to include the new 4t2 Sixam plants, so the CC version will have all the animated trees and all, yayy! Oh, and there's 2 bonus lots if you get the CC version. A mysterious Nebula Brick Road lot and Alien Parrrtey!, a lot inspired by the alien party lot in TS4 when you visit Sixam, lol.



Install Instructions:
This download consists of 3 parts:
  • a) Neighborhood itself:
    • Main Hood: Place the NSXM folder into your DOCUMENTS/EA Games/The Sims 2/Neighborhoods folder
      Note: If you have TS2 UC, it's DOCUMENTS/EA Games/The Sims 2 Ultimate Collection/Neighborhoods
      Note: If you have TS2 Legacy, it's DOCUMENTS/EA Games/The Sims 2 Legacy/Neighborhoods

    • University: Place the USXM folder into your PROGRAM FILES/EA Games/The Sims 2 University/TSData/Res/NeighborhoodTemplate folder
      Note: If you have TS2 UC, it's PROGRAM FILES/EA Games/The Sims 2 Ultimate Collection/University Life/EP1/TSData/Res/NeighborhoodTemplate
      Note: If you have TS2 Legacy, it's PROGRAM FILES/EA Games/The Sims 2 Legacy/EP1/TSData/Res/NeighborhoodTemplate

    • Downtown: Place the DSXM folder into your PROGRAM FILES/EA Games/The Sims 2 Nightlife/TSData/Res/NeighborhoodTemplate folder
      Note: If you have TS2 UC, it's PROGRAM FILES/EA Games/The Sims 2 Ultimate Collection/Double Deluxe/EP2/TSData/Res/NeighborhoodTemplate
      Note: If you have TS2 Legacy, it's PROGRAM FILES/EA Games/The Sims 2 Legacy/EP2/TSData/Res/NeighborhoodTemplate

  • b) 4t2 Sixam Flora & Fauna Set (& 3 new custom alien skintones):
    Download and extract the complete set of the 4t2 Sixam Plants (+ skybox & ocean floor) here.

    You should have extracted 4 folders now, go into each one and decide which version of the plants you'd like to keep. Move these folders into the Sixam CC folder of this download. This way, you should have 1 main folder and 4 sub-folders (+ 3 custom alien skins).

    Place the Sixam CC folder into your DOCUMENTS/EA Games/The Sims 2/Downloads folder
    Note: If you have TS2 UC, it's DOCUMENTS/EA Games/The Sims 2 Ultimate Collection/Downloads
    Note: If you have TS2 Legacy, it's DOCUMENTS/EA Games/The Sims 2 Legacy/Downloads

  • c) OPTIONAL: Custom lighting (for enabling 24/7 nights):
    Place the sixam_lot.txt file into your PROGRAM FILES/EA Games/The Sims 2 Mansion & Garden Stuff/TSData/Res/Lights folder
    Note: If you have TS2 UC, it's PROGRAM FILES/EA Games/The Sims 2 Ultimate Collection/Fun with Pets/SP9/TSData/Res/Lights
    Note: If you have TS2 Legacy, it's PROGRAM FILES/EA Games/The Sims 2 Legacy/EP9/TSData/Res/Lights

Neighborhood Information:
  • Neighborhood Folder: NSXM / USXM / DSXM
  • Neighborhood Type: Main Hood / University / Downtown
  • Neighborhood ID: 6143
  • Number of Lots: 35 -> +2 new bonus lots in Main Hood/Downtown
    • Number of Residential Lots: 7
    • Number of Greek Houses: 2 -> Apartment Lots in Main Hood/Downtown
    • Number of Dorms: 5 -> Apartment Lots in Main Hood/Downtown
    • Number of Community Lots: 20
    • Number of Secret Societies: 1
    • Number of Owned Businesses: 8
  • Number of Sims: 90 -> 130 in Main Hood/Downtown (incl. bonus NPCs + Pets)
    • Number of Playable Families: 4
    • Number of Playable Sims: 10
    • Number of Townies: 31
    • Number of NPCs: 44
    • Number of Dead Sims: 5




Gameplay Info:
  • While no camera mod is needed to see all lots in neighborhood view, I still recommend getting one, as some lots are build on skyscrapers, so it may get challenging to play at such heights with just the vanilla camera. Check out this post for more info.
  • Features a custom skybox and a custom lighting file that will make Sixam nighttime all the time! You'll also see some slightly seasonal changes where you'd see more reddish colors in Autumn, bluish colors in Winter and more greenish colors in Spring. Oh, and don't worry about your other neighborhoods, they won't be affected. This is only specific to the lots on Sixam. So, your Pleasantview, Strangetown, Veronaville lots should still have the regular lighting, even if you'd add Sixam as a subhood. To apply the lighting file for other lots, you need to use the cheat setLotLightingFile "sixam_lot.txt" for it to actually appear on new lots, lol.
  • As for the inhabited version, the 3 alien skintones (blue/turquoise/violet) from my [4t2] Aliens from TS4 Get to Work EP upload are required, as I still wanted to keep the TS4 aliens, especially Aileen Rauvu, as they are in TS2. I feel like their skintone is part of their personality, so, if I just replaced the blue/turquoise/violet skintone of some of the characters with the default green one, I feel it’d be as equally bad as white washing for me. Like replacing Olive Specter‘s dark skintone with a light one. BUT, I can understand that some may wish to not have any CC skintone in their games. So, for them, I also made an alternative CC free version where they'd just have the default green skintone instead.
  • Speaking of which, I also recreated some characters from TS4, especially all the characters from the The Sims 4 Get to Work: Sul Sul trailer. Every character comes with a complete set of ancestors (at least parents) and customized memories, even townies and NPCs! Some also come with interesting lore! Even though, they're just... townies! Oh, and everyone has genetic infant faces! Yayy! XD
  • The number of playable sims seems underwhelming at first but once you explore the neighborhood, you're most likely going to encounter some familiar faces, like the time traveler Emit Relevart from TS3 Into the Future or other familiar faces from TS4, like Nova Curious. So, I'd recommend moving in some of them and "unlock" them that way. Some characters made it to Sixam by "accidental" abduction, some deliberately wanted to get there, and some are on a mission... XD
  • Speaking of playable families, scripted events don't work in university subhoods, but I wrote a text in each family description that somewhat mimic the scripted event notifications anyway. I think this is a brilliant and fun way of introducing new characters, even in university subhoods. All households should also have a complete set of family album pictures that show their lore a bit. The main hood version does however include scripted events.
  • Oh, and I made lecture halls for every major, which you could use with beestew's Active Classes mod! These are community lots, owned by the professor NPC sim, that have equipment for building skills (mostly career rewards of the careers that are associated with the major), as well as some space where your sims can study. Your sims can also ask their professor for tutoring, which should be easy since the professor should be there all the time when you're on that community lot. The main hood/downtown version still includes these lecture halls, so if you ever wanted to try out the university-in-main-hood mods, this is the perfect neighborhood to try Squinge's Mega College Pack mods out.


Recommended Mods:
  • All notownieregen/antiredudancy/nodormiespawn/nossrespawn mods. I made sure that all university townies/NPCs are aliens.. or at least have a very good reason why they're there, so that you get the full Sixam experience! But this can easily be ruined if you don't have these mods installed. Technically, you should be greeted with fully populated dorms (even if you just move in one sim) and have customized alien university NPCs when visiting community lots if everything works as intended.
  • bloodredtoe's Mannequin babies can be born mod. To have more variety, I used the mannequin skintone for some of the alien sims. While this mod isn't required, it's recommended to prevent crashes, especially when these aliens have offspring, as there's a chance they could inherit the mannequin skintone.
  • Squinge's No Townie Memory Loss. Again, townies and NPCs in this neighborhood are highly customized and I recommend getting no townie amnesia mods to prevent their lore from getting wiped out! As there are a few clues in the bios of some of the townies... including long lost twins!
  • lingeringwillx's Restore Default Names for Sims in Subneighbohoods . This is especially helpful, not only because the townies/NPCs are related to the playable sims, but also, it will help to maintain the alien atmosphere of Sixam with names like Pollination Technicians, Colony Drones or Birth Queens, etc. instead of having EA's default townie/NPC names.
  • criquette's Better Nightlife Mod. An absolute must for custom nhood objects that light up at night. Otherwise, you will get pink flashing and the 4t2 Sixam plants won't animate properly. See the other download page for more info.
  • OPTIONAL: Alienara's 4t2 Sixam Plant Recolors. They look absolutely beautiful and would fit in perfectly in this neighborhood! I still kept my 4t2 Sixam neighborhood as close as possible to EA’s original Sixam with the original plants so I didn't use her set, but some alien plants look a thousand times better in some of her new recolors, lol. Definitively worth checking out!

Additional Credits:
That's it for now I guess? Oh and if I missed anyone, please let me know so I can add you to the list! Otherwise, have fun! I hope you like this neighborhood! <3
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