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The logic skill is useful in many moments of a Sim's life.

Improving Logic Skill

The basic ways to improve the logic skill are: looking with the telescope, playing chess with another Sim or with the computer, reading books about logic, completing opportunities, and creating potions using the chemistry table.


There are many opportunities available to improve the logic skill:

Opportunity Description
Fixing the Books Assist accountants at the business office.
Taking Down Sinclair Challenge Argyle Sinclair at the theatre.
Stimulating Experiment Participate in study at the science facility before the end of the time.
Settle An Argument Talk to a sim and convince that logic is great to improve his/her relationship.
Logic 101 Teach logic at the school.
Becoming More Logical Improve your logic and tell the scientists.
Riddle Away Complete a contest in the bookstore before the end of the time.
Puzzle Panic Assemble puzzles at the supermarket.
Logic Tutoring Skill tutor a sim and report it to a location.
Fixing the Celestial Slump Search the Galaxy on your telescope.
The Great Argyle Sinclair Watch Argyle Sinclair at the bookstore before the end of the time.


The Catalyst Chemistry Lab Station allows Sims to brew potions and increase their Logic skill. Each potion can be drunk by a Sim and has a different effect on the Sim who drank it.

Level Potion Cost Effect
1 Mood Enhancer §5 Increases a Sim's mood +10 for 4 hours
2 Stink Juice §10 Gives a Sim the Smelly moodlet.
3 Liquid Horror §20 Horrifies a Sim lowering its mood -35 for 8 hours.
4 Radical Reparum §50 Gives a Sim high handiness skill for 1 hour. This makes the upgrading process faster and guarantees a successful upgrade or repair; however, this does not unlock upgrading options.
5 Bladder Flow §75 Reduces a Sim's bladder level to 0.
6 Sleeping Elixir §90 Makes a Sim's energy increase faster while sleeping.
7 Ghost Potion §125 Turns a Sim into a ghost (who died of old age) for 1 hour.
8 Ninja Vanish §250 Teleports a Sim back to their home.
9 Imaginary Friend Metamorphium §4500 Turns an imaginary friend into a real Sim.
10 Young Again §5000 Resets a Sim (older than Young Adult age) back to day 1 of the Young Adult stage.


There are different challenges to complete for the logic skill:

Challenge Description
Celestial Explorer Celestial Explorers have discovered 20 celestial bodies through their telescope. Their extensive knowledge of the heavens allows them to discuss the stars with their friends and neighbors.
Grand Master Chess Grand Masters have reached the coveted fifth level of the competitive chess circuit. There, they sit upon their throne, gazing downwards upon their victims. Those who engage Grand Masters in chess improve their abilities in logic and chess more quickly.
Skill Professor Skill Professors have spent at least 30 hours tutoring other Sims in skills. Because of this, they are much more effective when teaching skills to others.
Teacher Extraordinaire Teacher Extraordinaire have spent at least 20 hours tutoring other Sims. Because of this, they are much more effective when tutoring others.
Master Chemist Master Chemists have discovered all 10 potions. Because of this, they can make potions at a 25% cost reduction.

Careers which need the logic skill

The careers which need the logic skill are: criminal, medical, law enforcement and music.

Sims 3 Game Help Categories:

Custom Content  | Installation  | Gameplay Guides  | Technical & Graphics Issues  | Miscellaneous Issues

MTS Help Q&A Forums
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