Here is the full list of all 24 Silicon City achievements.
Get a population of 200 citizens in your city to reach rank 2
Get a population of 500 citizens in your city to reach rank 3
Get a population of 1000 citizens in your city to reach rank 4
Get a population of 2000 citizens in your city to reach rank 5
Get a population of 5000 citizens in your city to reach rank 6
Follow the secret account behind the Matrix
Have your soccer team win 5 matches in a row against another city
Organize a soccer game between two of your teams in the same city
Send a tweet to one of your followers
Have 100 houses or apartments in your city
Have 500 houses or apartments in your city
Have 1000 houses or apartments in your city
Have 100 shops, bars or restaurants in your city
Have 500 shops, bars or restaurants in your city
Have 1000 shops, bars or restaurants in your city
Have 100 offices in your city
Have 500 offices in your city
Have 1000 offices in your city
Unlock all the blueprints
Have the Omegaplex building in your city
Have a fire truck ready to extinguish a building on fire in your city
Have a police officer cactching a criminal red handed in your city
Have an ambulance going to save a citizen in emergency
You found a way to finish the 2nd scenario in no time