Robotics

Sims can use the Robot Crafting Station to build robots.

No badge
Toy Robot - a basic toy robot. It doesn't have any special qualities whatsoever and acts like a normal toy. Sims with low mechanical skill will have a higher chance of making a Toy Robot in poor condition. The Toy Robot comes in three different colours and can be named when a Sim starts making one.

Bronze
A Sim will attain the Bronze Robotic Talent Badge after quite a bit of time making Toy Robots. By acquiring the Bronze badge, Toy Robots are made faster and a new type of robots, called Roverbots, are available to build.

CleanBot - Basically a robot that cleans up the lot it is activated in. The major shortcoming of this robot is that it only can clean up items that are on the floor. In other words, it can't clean counters or showers or sinks, nor can it dispose of anything that's on a surface. However, it can empty trash cans. When broken, it makes a larger mess for you to clean up.

HydroBot - A robot that puts out fires or waters your plants. When broken, it will create puddles of water everywhere.

Silver
Acquiring the Silver Robotics Talent Badge gives Sims the ability to create Toy Robots and Roverbots at a faster pace. It also gives Sims access to the new Hoverbots. Unlike Roverbots, Hoverbots can move up and down stairs.

SentryBot - An all in one policeman robot. It will shock shoplifters and robbers when it gets the chance. It can also shock newspaper stealers and garbage can tippers, though it may not be able to get to them before they do their deeds. Placed on a college residential lot, it will shock the Cow Mascot. However, it appears to ignore wolves and stray pets who do things like tip the garbage can or roll in the flowerbeds. When broken, it will shock random people.

MunchieBot - A robot that will fetch food from off your lot when your sim is hungry. The meal will be paid for by yourself, of course. When broken, it will bring back rotten or burnt food for your Sim.

Gold
Achieving the Gold Robotics Talent Badge allows Sims to make Toy Robots, Roverbots, and Hoverbots much faster. It also opens up the option to build an old friend from The Sims: Servo.

Effects of Mechanical Skill
Sims with high Mechanical skill gain badge levels somewhat faster. On the other hand, Sims with low Mechanical skill will have an increased chance of making robots that need to be repaired before they can be used.

Messages
Bronze

With a new understanding of how wheels, motors and computer chips go together, NAME can now build "RoverBots" to do some basic chores around the place! That's worth the Bronze Robotics Talent Badge!

Silver

Wheels are very fine, but mastering hover technology has let NAME make "Hover bots" that can keep a sim safe as well as fed. That deserved a silver Robotics Talent Badge

Gold