There are several options for getting Mana:

1) You can buy a Mana pack in the Mana Shop. Your purchase will help support the The Sandbox’s development and allow us to offer more updates! 
Your current Mana is at the top-right of your screen. See the blue flame and the number 5393 in the image below? Just tap there! 

Then select which pack you want to purchase:

2) By completing different challenges in the Daily Quests, you can earn free Mana. If he hasn’t done so already, God will prompt you on the main menu by saying: “Need Mana? Tap here for today’s quest”. Good luck!

3) If you “like” our Facebook page via the game, we’ll reward you with 1000 Mana! The Facebook link is at the bottom-left of the main menu. 

4) In the Mana Shop, you can select the “watch a video” option to see a game video and receive a Mana reward. The “watch a video” option is right under the Facebook option in the Mana Shop.

5) In the Mana Shop, you can also complete some actions that will not only give you free Mana but also provide discounts for our partners’ brands. Select the “get free mana” icon and meet our partners!