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Maxis Modular Stairs Passage Fix

by Lord Darcy Posted 14th Oct 2008 at 10:42 PM - Updated 24th Jul 2011 at 8:02 AM by Lord Darcy
39 Comments / replies (Who?) - 3 Feedback Posts, 10 Thanks Posts
Picked Upload! This is a picked upload! It showcases some of the best talent and creativity available on MTS and in the community.

This mod enables Sims to pass directly through under all Maxis modular stairs, just like base game Holy Smoke stairs.

Even without this mod, most objects are usable when you force them under the modular stairs with moveobjects cheat on. But there are some exceptions like bookcases. Without this mod, Sims will complain route blockage when they're trying to reach bookcases placed under the modular stairs.

With this mod installed, you can place 1-tiled objects on the "bridge" tile (the one where Sims walk through) without moveobjects cheat on. (See the screenshot below.) Sims can freely use objects placed on the "bridge" tile. Especially useful for bookcases.

Existing modular stairs need to be deleted and replaced to pick up the change.
Only for modular stairs. Will not work on staircases.

Choose only one version, depending on your preference.
  • LdDarcy_StairModularPassageFix_All: For all Maxis modular stairs, even the ones with supports under the stairs.
  • LdDarcy_StairModularPassageFix_NoSupportsOnly: Only for 3 Atomic modular stairs from Pets, which have no supports under the stairs.
To fix the custom modular stairs in the same way, extract one of "CT - No Supports?" BHAVs from this mod, add it to your custom modular stairs, and change the group to 0xFFFFFFFF.


Place in your My Documents\EA Games\The Sims 2\Downloads folder.
(Or in a subfolder of Downloads folder.)


v1.0: Initial release.

Additional Credits:

Everyone who contributed to the development of SimPE

      Fixed: Fixed Maxis Mistakes
      Object Mods: Object Interaction Mods (things that change how sims interact with objects or their environment, like "Multi-owner door" or "sunbathe anywhere")

You must have the expansion or stuff packs listed below installed to use this custom content. Please see the post text for any exceptions.

Key: - File was updated after upload was posted
Filename - Tip: You can click the magnifying glass to see the archive contents Size Downloads Date | Only for 3 Atomic modular stairs from Pets

Size: 990 Bytes · Downloads: 16,189 · 14th Oct 2008
990 Bytes 16,189 14th Oct 2008 | For all Maxis modular stairs

Size: 1.1 KB · Downloads: 59,113 · 14th Oct 2008
1.1 KB 59,113 14th Oct 2008
Don't forget to Thank the creator after downloading! Use the Thanks button located above the screenshots above.
Basic Download and Install Instructions:

1. Download: Click the download link to save the .rar or .zip file(s) to your computer.

2. Extract the zip, rar, or 7z file.

3. Place in Downloads Folder: Cut and paste the .package file(s) into your Downloads folder:
  • Origin (Ultimate Collection): Users\(Current User Account)\Documents\EA Games\The Sims™ 2 Ultimate Collection\Downloads\
  • Non-Origin, Windows Vista/7/8/10: Users\(Current User Account)\Documents\EA Games\The Sims 2\Downloads\
  • Non-Origin, Windows XP: Documents and Settings\(Current User Account)\My Documents\EA Games\The Sims 2\Downloads\
  • Mac: Users\(Current User Account)\Documents\EA Games\The Sims 2\Downloads
  • Mac x64: /Library/Containers/com.aspyr.sims2.appstore/Data/Library/Application Support/Aspyr/The Sims 2/Downloads
Need more information?
39 Comments / Replies (Who?) - 7 Feedback Posts, 29 Thanks Posts
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Test Subject
27th Oct 2008 at 5:56 PM
This message has been deleted by JLonier. Reason: stop it
Lab Assistant
#26 Old 29th Oct 2008 at 6:54 AM
i love you! because of this mod :D
Test Subject
#27 Old 29th Oct 2008 at 8:40 AM
you're just amazing with your skills here :D
but could you please tell me if this works with al?
Lab Assistant
#28 Old 16th Jan 2009 at 5:48 AM
I don't know anything about BHAV or any of that cause SimPE just hates me. lol

Thanks for this. I will try it.

Do I HAVE to delete my old stairs, or will it override them for me? plz answer.
#29 Old 14th Feb 2009 at 2:20 PM
WTF... I don't understand how to get this thing to actually work.
#30 Old 13th Dec 2009 at 3:48 PM
That's handy. Thanks a lot.
Test Subject
#31 Old 7th Apr 2010 at 12:58 AM
Oh my goodness....I love you.... *bows* <3
Test Subject
#32 Old 30th Aug 2011 at 3:34 AM
As I now have Pets, this will be very useful =D
Field Researcher
#33 Old 16th Sep 2011 at 7:53 AM
Another wonderful hack that does what the game designers should have done in the first place!! TYTYTY!
Mad Poster
2nd Dec 2011 at 5:15 PM
This message has been deleted by M.M.A.A.. Reason: knew the answer to the question
Field Researcher
#34 Old 20th Jul 2012 at 12:58 AM
Hey, I'm getting an error when I try to download (no input specified)...?
Test Subject
#35 Old 23rd Dec 2012 at 12:08 PM
this is sexy. thanks :D
Lab Assistant
#36 Old 30th Aug 2013 at 12:44 AM
Thank you
#37 Old 22nd May 2014 at 8:14 PM
Top Secret Researcher
#38 Old 28th Mar 2015 at 3:20 PM
Thank you.
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