Rebalanced Vampire Motive Decay Rates
VampMotiveDecay 1.jpg - width=1440 height=1080
VampMotiveDecay 2.jpg - width=900 height=1200
She's been up since 6 and still going.
VampMotiveDecay 3.jpg - width=1440 height=1200
They may react fearfully, but they aren't getting burned, I guarantee.
VampMotiveDecay 5.png - width=1726 height=719
There is already a spreadsheet in the file.
VampMotiveDecay 6.png - width=720 height=1080
All decay rates in a single BCON, for much easier customization
Update LogsUpdate 2 - 2026\3\14
- Critical fix to a long-standing issue
- Constant switching to the detrimental outdoor motive decay rates have been resolved.
- Said issue happened upon switching room, and Sims would only return to the appropriate rates after performing an action.
- This was due to the Door SG disregards my check and points directly to 1 of the 3 motive decay BHAVs.
- Fixed wrong motive rates for PlantSim
- Comfort gain\loss has been made to work properly.
Update 1 - 2025\10\25
- Non-essential update
- Code has been remade and incorporated an unused global BCON, as to make customization easier.
- The concept of middle-aged Sims has been introduced, if only to make motive decay rates more varying.
- By default, adult Sims now use the same rates as teens and young adults.
- If their days left are less than half, then they use the "Aged Adult" rates, which are closer to elders' and previous version of the mod.
- Age segregation is meant to represent Vampires of various seniority.
- Ancient Vampires detached from Sims' livelihood will of course have different priorities than younger Vampires.
- Adult Vampires can advance their days left by editing my "Plasmophage" to make Vampires become "older" as they drink more!
- Comfort gain during nighttime now based on meanness instead of niceness
- Slight changes to decay rates, such as Power\Sunlight being restored a bit quicker and Water drained a bit slower
This version has an issue from outside BHAVs disregarding the check, resulting in constant switching to the detrimental outdoor rate. Please get Update 2.
BackgroundVampires in Sims 2 are more a handicap than a boon. At night, their motives remain static and do not decay, which can be a detriment as there will be few incentives once their motives are fulfilled.
This mod grants Vampires more freedom in the daytime, provided they remain sheltered from the Sun.
By rebalancing how their motive decay rates are, their motives no longer drop quickly while staying inside. Additionally, this mod incorporates a feature from Season - weather. Rain, hail and snow can all shield the Vampires from the Sun. PlantSim and Servo Vampires by default benefit from their conflicting nature, and they will regain Power\Sunshine when exposed!
Features- More comfortable motive decay rates during daytime, while staying inside.
- Weather Matters: rain, snow, and hail each blocks sunlight and allows Vampires to enjoy the daytime indoor rates instead.
- Less deadly sunlight gives more time to find shelter.
- Motive decays or gains during nighttime, whose rates also vary by age and personality.
- For example, at night, active Vampires regain more Energy while nice Vampires lose more Social. Elders regain Energy faster than teens and lose less Social.
- Elders are less comfortable, pun intended, during daytime than biologically younger Vampires.
- Nice Vampires crave social interaction, while shy Vampires are more repressed and get hungry quicker.
- Decay rates variation applies to even while exposed to the Sun! Nice Vampires are just more sentimental!

- Vampire Servos and PlantSims regain Power\Sunlight instead of losing them when exposed to the Sun.
- They still hate the Sun and will lose Social\Love quickly, though.

- Sunlight is still dangerous to PlantSims anyway as their Water will be drained all the same.
Specific decay rates and how they vary by personality are found in the attached spreadsheet.
OptionsThere are 3 versions of VampireMotives files in the .zip. They merely have different Boolean settings in the BCON. Use only 1 of them.
SubAgeCheck_MiddleAgedAdult.package should be kept if you use the _MiddleAgedVampires file, or decide to customize the mod.
IssuesVampires who are currently performing interactions will not have their decay rates updated until they are finished or interrupted. For example, when night falls, a Vampire who has been writing a novel will continue to have the daytime rates. Only by canceling the interaction, or the novel is done, will said Vampire start benefitting from the nighttime rates.
Update 1 suffers from an issue where the decay rates constantly switch to daytime outdoor upon moving to another room, which is highly detrimental. Please get Update 2
Please report any other bugs in the comment section.
ConflictsThis mod modifies the Global group (0x7FD46CD0) in the following instances:
BHAVs: 0x00000456, 0x0000048C, 0x0000048D, 0x0000051D
BCON: 0x00000129
Technically, BHAVs: 0456 and 048C should be deprecated since Update 1. They are however pointed to by functions outside the scope of this mod. An alternate version is in work and will free them.
This mod modifies the Car Semi-Global (0x7F4EA230) in a single instance - BHAV: 0x0000216F
Credits:jonasn for Outerwear Change Made Smarter mod
| Filename | Type | Size |
|---|---|---|
| Vamp-MotiveDecay.zip | zip | |
| Customization.txt | txt | 1005 |
| Read Me.txt | txt | 665 |
| Spreadsheet - Vampire Motive Decays.xlsx | xlsx | 10247 |
| zBW-SubAgeCheck_MiddleAgedAdult.package | package | 317 |
| zBW-VampireMotives.package | package | 3159 |
| zBW-VampireMotives_AdultVariety.package | package | 3157 |
| zBW-VampireMotives_NoServoPlantSim.package | package | 3155 |
Note from the Creator:
Any other .package files should be kept.
|
Vamp-MotiveDecay.zip
Download
Uploaded: 14th Mar 2026, 18.0 KB.
1,105 downloads.
|
||||||||
| For a detailed look at individual files, see the Information tab. | ||||||||
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
- For a full, complete guide to downloading complete with pictures and more information, see: Game Help: Downloading for Fracking Idiots.
- Custom content not showing up in the game? See: Game Help: Getting Custom Content to Show Up.
- If you don't have a Downloads folder, just make one. See instructions at: Game Help: No Downloads Folder.
Loading comments, please wait...
Uploaded: 5th Jul 2025 at 12:36 AM
Updated: 14th Mar 2026 at 7:37 AM
jonasn's Nap Sets Asleep Motives mod is not directly related, but useful for helping Vampires get some rests mid-day.
-
Vampire's Real Bite / Vampire's Motives Nighttime Decay
by linolino 9th Nov 2007 at 8:34pm
+3 packs
24 83.3k 45
Nightlife
Seasons
Bon Voyage
-
by LazyDuchess 22nd Feb 2021 at 2:28am
6
29.6k
88
-
by simler90 updated 27th Sep 2022 at 4:49am
19
45.3k
159
-
by guirnaldas updated 25th Mar 2023 at 4:26pm
9
5.5k
9
-
More Balanced Idle Animations + fix 1
by guirnaldas updated 18th Jan 2023 at 9:29am
+1 packs
6 9.9k 35
Mansion and Garden
-
Motive Transport for Owned Business
by jonasn updated 16th Jan 2025 at 12:29am
+1 packs
6.1k 15
Open for Business
-
hmiller61615's "Go Hunting" Spears Revamped
by Big Woe updated 7th Jun 2025 at 12:10am
Rebalanced version of hmiller61615's "Go Hunting" Spears with additional interactions for children and teens, as well as pets more...
+4 packs
3 2.1k 6
Open for Business
Pets
Seasons
Free Time
-
SimWardrobe's Vocation Trainer Revamped
by Big Woe updated 8th Dec 2025 at 6:54am
Enhancements to SimWardrobe's Vocational Training Center, allowing all 11 badges and 7 skills to be taught. Also featuring motive drains\gains, class chat, enthusiasm gain, and adjustable parameters more...
+3 packs
15 4.4k 24
Open for Business
Seasons
Free Time
-
Meaningful Relationship Status and Decay
by Big Woe updated 27th Aug 2025 at 3:13am
Makes relationship decay depend on status, allowing easier keeping of friendship and segregate BFF from Best Friend. more...
+2 packs
15 6.6k 11
Pets
Free Time
-
Better Bon Voyage Part 3: Shrine and Garden
by Big Woe updated 8th Mar 2026 at 10:54am
More results for the lucky shrine, and whether they are good, bad, very bad, or nothing depend on the Aspiration level. Also enhanced zen garden more...
+1 packs
7 1.3k 7
Bon Voyage
-
More Interactions for Vampires
by Big Woe updated 24th Oct 2025 at 11:42pm
4 new interactions for Vampires, powered by Charisma (take that, Maxis) and may be defended against. Also reworked 2 original Vampire interactions to the same standard more...
+4 packs
17 9.7k 45
Nightlife
Open for Business
Bon Voyage
Apartment Life
-
Simlogical Air Conditioners Revamped
by Big Woe updated 8th Dec 2025 at 5:58am
Semi-Globalized air conditioners derived from Inge Jones' (Simlogical) original, with limited range, proper placements, and selectable modes more...
+1 packs
5 4k 9
Seasons
Packs Needed
| Expansion Pack | |
|---|---|
![]() | Nightlife |
![]() | Open for Business |
![]() | Seasons |
About Me
Mod update logs can be found on the main pages for mods updated from December 2025 onwards. Otherwise, they are always in the comment sections. Bold line indicates an important fix or a big feature. Some updates may be stated to be non-essential.
I prefer to modify and expand upon other people's contents, since I'm no artist. I will ask content creators still active first, but I'd love if they actually ask me to help out. I also like mods and objects that add more to gameplay (and modify them to add even more!) since everybody else has been making fixes.
Sign in to Mod The Sims
Rebalanced Vampire Motive Decay Rates




