This or for simmers who don't play generations of their sims. Or if you do, then you can do it.
Basically you play a bunch of generations
You lose if everyone dies.
First make a couple in CAS. I recommend female and male, but you can have male-male, and female-female, you'll just have to adopt.
Move them into a home.
Here's the rules for each generation:
1st generation.
This is the hardest. You may have only 5 seating, 2 beds, 1 counter, 1 bathroom, kitchen. (regardless of family size) Everything must be cheap. Pets, vacation, dating, and university may not be used.
Goals:
Make at least 3 friends (total for whole household)
Have at least 2 kids
Get a job


2nd generation:
You may add 1 seating, and 1 bed. You may get 1 pet. Dating is now allowed.
Goals:
Have a child/teen get an A+
Get a pet (or a teddy bear)
Go on 2 dates

3rd generation:
Upgrade 5 things.
Goals:
Make at least 4 friends
Have twins (use cheesecake/cheat)
Have at least 5 kids

4th generation:
Get another pet/teddy bear. University is now allowed.
Goals:
Have triplets/quadruplets (no cheating) (mod must be used) (if you can't use mod, just skip)
Get another pet
Adopt a child
One child/teen must get an A+
Go to University

5th generation:
Upgrade 3 things. Add 2 seating, 2 beds, and another bathroom.
Goals:
Adopt 2 kids
Have at least 2 biological kids
Get a promotion

6th generation:
Vacation is now allowed.
Goals:
Go on Vacation
2 children/teens must get an A+
Adopt 3 kids
Have at least 6 kids

7th generation:
Add another bathroom, bed, and seating. Upgrade 10 things. Get another pet.
Goals:
Have at least 7 kids.
3 kids must get an A+
Get a pet
Earn a promotion.

8th generation:
Upgrade 3 things. Add 2 beds, 2 seating, and a car (NL)
Goals:
Get a car
4 kids must get an A+
Adopt 4 kids
Have 4 biological kids
Have at least 8 kids

9th generation:
Upgrade anything left. Add 1 bed, 3 seating, and another bathroom.
Goals:
Have all kids get an A+
Have ALL biological kids (use cheat to get pregnant if needed)
Have 12 kids

10th generation:
This one is fun. Everything is upgraded, you have a car, 3 pets. All your sims need to do is enjoy it. And complete the goals.\
Goals:
Have 20 kids! (might get interesting)
Go on 8 dates
Have ALL kids get an A+
Have 1 adult reach the top of their career
Have the other adult max out all skills
NO ADOPTING!
Earn 8 promotions


Enjoy! If you don't have a expansion pack, just skip the goal, or use something else. Let me know how far you get before going stir crazy!

Tell me what you think of the challenge!

"If you don't play generations"... but you have to go through TEN generations.. and I just don't get the "challenge" part of this. For me, the only hard (never mind INTERESTING) part is getting past 3 generations.

See how long you'll be able to manage to complete all the goals.

If you are trying it, let me know, and post your progress here.