In The Sims 3: Generations for the PC, there are a couple cheats you can use to get a ton of Simoleons for your Sims.
Hold Ctrl + Shift and hit the C key to open the command prompt. Enter the following codes to get the amount of Simolens listed.
1,000 Simoleons – kaching
50,000 Simoleons – motherlode
There is an alternate way to modify your money pile as well. In the command prompt, type in testingcheatsenabled true and hit Enter. With that enabled, you can type familyfunds in the command prompt, followed by the family name in quotes, and the amount you want the family to have.
For example, if there was a family in your game of Smith, you would enter this into the command prompt:
familyfunds “smith” 1000000
Now the Smiths have one million simoleons to play around with.