The Sims 3
50 Achievements
1,000
30-35h
What Goes Around
Used a Karma Power.
10
How to unlock the What Goes Around achievement in The Sims 3 - Definitive Guide
*This is not my video, all credit goes to pantsonfire020 on YouTube*
You can find the Karma powers by pushing and going over to the Karma powers tab. There you will find the various good and bad Karma powers. You can't just use them whenever you want however because they cost Karma points. Karma points are given to you when you complete wishes and when the clock strikes midnight. At midnight you're awarded anywehere from 8 to 15 Karma points and you recieve 1 for completing a wish unless you've bought challenge bonuses which can make it so that you can get up to 4 Karma points per wish. Once you have enough Karma points for the power that you want to use go to the Karma tab and click on the power that you want. Any power will work, good or bad. The cheapest Karma powers are Cosmic Curse which costs 5 points and it's a bad Karma power and Instant Beauty which costs 10 Karma points and it's a good Karma power. When you use it you will unlock the trophy.
I recommend leaving this achievement until after you have got Be Excellent to Each-other because that requires you to get 100 karma all at once. To use a karma power press the Back button () and then go along to karma powers and select a karma power. The cheapest one costs 5 karma points and it's called "Cosmic Curse". After you have selected a karma power simply select a Sim to use it on.