Obviously requires Pets, but no other EP should be needed. This is my first challenge, and I haven't really finished it myself yet, but it's doable. However, if the rules are unclear or if I forgot something, let me know!

Your Sim has had a lifelong dream to breed horses. They finally got enough money to buy themselves a mare (female horse). Now they want to breed perfect horses and live off that. Can they succeed?

PREPARATION:
1. Create your Sim, YA or A, of any gender. Traits are up to you, except they must have Equestrian trait.
2. Make a female adult horse. The horse must not have the Untrained trait, and must have either Agile or Fast trait (or both).
3. Buy a lot and build a house, or buy a premade house. Make sure you have everything you need for your Sim and horse (including a box stall for the horse). You may use cheats to add money, but don't go too extreme - your Sim doesn't have a lot of money left because of buying the horse, remember? But if you really need another 1000$ to finish building, that's okay.

RULES:
1. You must breed your mane at the equestrian center (do NOT buy a stallion).
2. Your mare must have at least 5 foals (but she may have more). All foals must survive until they're adult, must get rid of Untrained trait and gain Agile or Fast trait (or both).
3. All horses, including your mane, must be trained to have all points in racing or jumping (depending if they're Fast or Agile).
4. You must sell all your horses once they have the right traits and skills, except the mane and one female, who is your heir.
5. If all 5 foals are male, and you don't want additional foals, you must buy a female foal, who must have Untrained trait at the time you get it, to be the heir. You may NOT adopt, she has to be bought.
6. All horses, including non-heir ones before you sell them, can be entered into competitions. This is your main source of income.
7. Additionally, your Sim may work at home for income, but can't get a job (Ambitions careers not allowed either).
8. Your Sim must have at least one heir, to continue the horse breeding. The heir must be a biological child (not adopted) and must have Equestrian trait, other traits don't matter.
9. The mother/father of the child may move in or marry your Sim, but it's not required. However, if they have a job, they must quit it. No one at the horse farm, including heir's siblings, must not have a job. If they get a job, they must move out.
10. Generation 2 starts when your horse heir gets the first foal, regardless of the current age of Sim heir.
11. You must lead 5 generations of horse heirs, while still making sure the Sim heir has the Equestrian trait (if your horse heir was born early or late in its mother's lifetime, your horse generations may be falling front or behind of Sim's generations).
12. No cheats, except for money when making the house (you may not add money with cheats later in the game, or use any other cheats).

nice idea!so gonna try this

This looks like a lot of fun! Although I don't recommend the use of money cheats in the beginning. I think it'd be a better challenge if you had to move onto an empty lot and start from scratch, just you and your horse.

very challenging! especially the no employment.

my sims usually don't want to marry nor have a child if they do not have a career.

registering as self-employed gardener or angler seems a possibility - employment is huge with sim LTR STR

i guess i cant participate yet, my sims would get too much anxiety not having a career.

cutting a career out takes away many in-game opprotunities, including charisma challenges.

consider the gardener or angler self-employed - get the professional slacker achievments, vactioner, opprotunistic,

those 3 will help sim feel rewarded from bona fide career. and they go well with animals.

my lovely staallion ate my tomatoe plant. piggy!

awesome...

Giving it a shot!

I think I might try this, I made a challenge like this but it was dogs and cats... Without the sims part. But I think yours would be more interesting :P

I love horses say cheese if u love horsies lol I sounded like I was 3! lol :P

Trying.