All rules from 1930s still stand with the following changes:
- War:
- All male Sims who are already a Young Adult when the 1940s begin are drafted for World War II. They can Try for a Baby before they are called to service. Make them eat the Cow Plant cake once, roll a die, odds must eat a second piece of cake, events are sent home. These Sims are not allowed to have a career until they return from war – if you have StrangerVille, then they are required to take the Military (Officer) career during active duty.
- All male Sims who become a Young Adult during this decade will not be drafted but MUST get a career.
- Traits: Any male Sim returning from war must suffer trauma and take one of the following traits the next time they age up: Gloomy, Hot-Headed, Clumsy, Erratic, Lazy, Mean, Paranoid, or Noncommittal.
- Relationships/WooHooing
- Sims may have relationships with other ethnicities/races, but they cannot marry.
- Home/Building
- Every house must have a Victory Garden with at least 4 plants.
- Every house must have a radio, and someone must listen to it for at least an hour each day.
- Coffee makers are allowed (but not fancy espresso machines or one-cup brewers).
- Fitness equipment (including the training bot) is allowed for Athletes and Military only.
- Soundtastic jukebox is now allowed.
- Winter Holiday music is allowed.
- Large commercial farm greenhouses are allowed.
- Thermostats are allowed.
- Education
- Teens are no longer sent away for bad grades.
- World War II lasted Early Fall 1939 to Early Fall 1945, but the US did not enter the war until Early Winter 1941. If your Sim wants to attend university, they may do so after they have served active duty for a minimum 8 Sim Days.
- The GI Bill was introduced in 1944. From this point forward, any veterans can receive half of their tuition for free (use the money cheat to give the household the funds).
- Sims can now major in Culinary Arts or Psychology at university.
- Career
- Male Sims are permitted the following careers: Actor, Athlete (Bodybuilder), Civil Designer (Civic Planner), Criminal (Boss), Critic (either branch), Culinary (either branch), Detective, Doctor, Education (either branch), Engineer (Mechanical), Entertainer (either branch), Freelancer (Fashion Photographer, Writer), Gardener (either branch), Interior Decorator, Law (either branch), Military (either branch), Painter (either branch), Politics (Politician), Scientist, Secret Agent (either branch), Veterinarian, Writing (either branch).
- Young Adult veterans cannot have a career until they have served active duty for a minimum 8 Sim Days.
- Young Adult male Sims who are NOT veterans MUST have a career.
- Female Sims MUST have a career. Once they are married, they may keep their career or leave to become a housewife, their choice. They are permitted the following careers: Actor, Athlete (Bodybuilder), Civil Designer (Civic Planner), Criminal (Boss), Culinary (either branch), Engineer (Mechanical), Entertainer (either branch), Freelancer (Fashion Photographer, Writer), Gardener (either branch), Interior Decorator, Law (either branch), Military (Officer), Painter (either branch), Secret Agent (either branch), Writing (either branch).
- Teens are allowed (and encouraged) to have part-time work.
- Permitted part-time work for any Sims:
- Babysitter
- Fast Food Employee
- Fisherman – males only
- Lifeguard
- Manual Laborer
- Retail Employee
- Holidays
- Holiday decorations are allowed – you may want to add “Decorate” to the traditions on your various holidays.
- Miscellaneous
- Sims may only have one hot-cooked meal per day. Otherwise they must eat food found from scavenging, fishing, and gardening.
- Sims can take medicine when they are sick.
- Babies can be born at home or at the hospital.
- The veterinary profession became more common – you may take your pet to the vet if they are sick. Also, spaying/neutering is an option!
- You may use washing machines and dryers.
- You may use the photo studio items (with the exception of the electronic backdrop).
- Male Sims are permitted the following careers: Actor, Athlete (Bodybuilder), Civil Designer (Civic Planner), Criminal (Boss), Critic (either branch), Culinary (either branch), Detective, Doctor, Education (either branch), Engineer (Mechanical), Entertainer (either branch), Freelancer (Fashion Photographer, Writer), Gardener (either branch), Interior Decorator, Law (either branch), Military (either branch), Painter (either branch), Politics (Politician), Scientist, Secret Agent (either branch), Veterinarian, Writing (either branch).