Enables or disables headline effects good for screenshots. Use the 9 and 0 keys to adjust the item you're 'holding'. Pregnancy and Multiple Birth Cheats You can use relationship cheats to Try for Baby quickly, and follow up with a cheat once the Sim is pregnant in order to force the Sim into labor. You can also cheat to get twins, triplets, quadruplets, or more! Find this near the end of the Pregnancy Guide.
You can also skip Ambrosia or the Book of Life and make a Sim who's died back into a normal Sim by removing this ghost trait once they've been added back to your family. To disable them, type testingcheats off. The cheat console will say, "Cheats Enabled". If it does not, you can try other options: You must do this every time you load an area until a bug is fixed.
Here are the things you can do with testingcheats - note that this command is also necessary for the extra cheats further down. Shift-Click the Mailbox to access the ability to stop need decay for your current household or the entire neighborhood effectively make everyone happy. Disable Need Decay will make needs stop falling; re-enabling them is as simple as selecting Enable Need Decay. Make Happy will then fill needs to the maximum. This will let you select to make only that Sim's needs static or make them happy by filling all needs.
This takes you to Create-A-Sim where you can make the Sim look however you want, but not change their gender or traits. To fully edit a Sim in Create-a-Sim, type cas. This will let you change the gender, traits, everything, and is much more powerful than the scaled down version you get without typing this cheat. Thanks Pokeh for giving me this information. Shift-Clicking NPC Sims will allow you to add them to your household or reset them if they get stuck.
You can also Edit them in CAS if you like. Shift-Clicking the Ground will allow you to Teleport anywhere you could walk in the neighborhood. Shift-Clicking Objects allows you to reset them, should something get stuck or broken. Shift-Clicking Objects, for those that can get dirty, allows you to either make them dirty or clean - all objects can be reset, as well.
Customize the size of Items - Enlarge or Shrink - This only works while in build mode, as changing object size requires you to be able to fit it somewhere. Press this too much and it will grow enormously. The controls for this are a little wonky, so experimentation is recommended.
Thankfully, if you go overboard like in the picture above you can always undo it and shrink the object down to a size you like. Skill, Career, and Aspiration Cheats Powerful Hidden Cheats With the permission of TwistedMexi, a Simmer who took the time to look into The Sims 4's source code and find all the developer cheats, I am listing the cheats that help with Sims 4's Skills, Careers, and other common things here.
You can find a full list of cheats TwistedMexi has discovered here. The Wiki is being updated with newly discovered cheats, so you might find something that helps you a lot there. Testingcheats on should be enabled, as some cheats will not work without it. Money X - Type Money or , whatever you like, and your family will have that amount exactly. This can be used to subtract funds, because it sets the money to whatever amount you specify.
You can do this repeatedly until you have every Reward trait and gobs of satisfaction. It's listed above but bears repeating here: Infinite Consumables - One-time use potions can be bought with satisfaction. You may also milk Cow Plants that have killed Sims to get a potion that increases a Sim's lifespan.
You can make these consumables infinite by using the objects. This can allow you to always get a particular emotion, or make a Sim immortal with aging still on. Remove negative moodlets by typing Sims. This will take away positive as well, but you can get those back.
Careers Cheats While already in the career you want via normal hiring from the phone or computer and with testingcheats on, type Careers. Any Careers that have multiple words should contain no spaces, for example careers. You cannot use this to go back to the branch choice for a career - if you're at the first level of a branch, you'll be fired using this.
If you don't know which branch you want, check out the linked Career guides to see the benefits and pay of each. The Careers Guide also has a table to compare careers. To quickly get multiple promotions, copy the command below for the career you're in - just the careers. Paste it until you're level 10!