You can get free RC in the following ways:
1) Connecting to Facebook
When you log in to Facebook with your game for the first time, you will get 3 RC for free.
2) Daily Login Bonus
If you log in every day (no matter how long you spend playing the game that day), you will receive a daily bonus. On every 5th consecutive day that you log in, you will receive RC or another special item such as Gasoline, Fertilizer, or OP.
For more information about the Daily Login Bonus, please find the FAQ topic “Daily login bonus”.
3) Level up
Every time you level up you will receive 1 free RC.
4) Achievements
You can get free RC by completing achievements, which can be found in the Achievement House.
For more information about the Achievement House, please check out the FAQ article “Achievements”.
5) Mystrons
You can collect Mystrons from the calendar, the Fortune Wheel and from fishing. Mystrons can be traded in for various items in the Mystery Store which can be accessed from the in game Menu button.
6) Fortune Wheel
If you are feeling lucky, then have a spin on the fortune wheel and you’ll have a chance of winning some free RC.
7) Facebook Fan Page
We often have contest on our official fan page, where we give out free RC. Make sure you like our fan page to receive all updates.
8) Fishing
Get all the stars in the Fish Book. The Fish Book can be found at the Fishing Pier. For certain fish you can get free RC.
9) Dedicated Farmer Bonus
Get the Dedicated Farmer Bonus. You can find it at the top of your screen. The Bonus icon looks like a treasure chest. Continue collecting these bonuses and you will eventually receive free RC as well.