Crystal Engine

A crystal engine is a repeating process of generating your own crystals rather than paying money to purchase crystals.

A crystal engine is technically known as a "value generation system" in other contexts (irl...) because the value (crystals) that you gain from this system gives you access to everything purchasable in the game (except for things like experience and personal skill which can't be purchased)

A crystal engine is the key to your wealth in Cookie Run.

One time sources for Crystals
more details on Crystals <--
 * 1) 1-20 crystals for each each level-up with higher levels rewarding more crystals and each checkpoint of 10 levels rewarding more crystals.
 * 2) 100 crystals for inviting 50 friends at the Invite Event (main screen above your pet)
 * 3) X crystals (anywhere between 5 - 100) from weekly/monthly events
 * 4) 100-300 crystals from large promotional events such as Game Updates usually every 3-4 months.

Crystal Generation
All players start with a 1 crystal engine.

Logging in daily rewards you all crystals generated for that day, so with no treasures, you start with 1 crystal per log-in per day.

'''Crystal generating treasures from game reward. (free 2 play)'''

(2C 30%) Prophet Cookie's Majestic Beard obtained from Prophet Cookie at level 8

(1C 60%) Snow Globe's Crystal Crown obtained from Snow Globe Pet at level 8

(1C 60%) King Choco Drop's Jelly Crown obtained from King Choco Drop legendary pet at level 8

(2C 50%) Lv.50 Golden Club Trophy obtained by reaching level 50

(3C 50%) Lv.60 Legends Club Trophy obtained by reaching level 60

```(4C 50%) Lv.70 Heroes Club Trophy obtained by reaching level 70 (next game update) (i made up the 'heroes' part btw)```

(1C 40-70%) Cookie Run: 0-100M Points Certificate Treasures obtained from playing before Season 4 New World update

(4C 20%) Commemorative 4 Layer Cake obtained by play during the week the game reached 40 million downloads worldwide.

'''Crystal generating treasures from store purchases. ("pay 2 play")'''

(1C 50%) Crystal Pearl Earring A rank treasure

(2C 50%) Rare Sapphire Brooch S rank treasure

(5C 21%) Big Crystal Ore S rank treasure

(10C 11%) Rare Crystal Clam S rank treasure

Recent updates gave free-2-play players another option of obtaining these once pay-2-play through Mystery Boxes which is obtained through normal playing of the game. Mystery boxes can reward players with A rank or S rank treasure chest Coupons which could then be used to trade in for these otherwise crystal only treasures.

Limits of a free-2-play crystal engine
To calculate the crystal generation potential of a treasure, multiply the # of Crystal by the %age of generating those crystals.

Example: Rare Sapphire Brooch generates 2C at a rate of 50% per day. This averages to a potential of 1 crystal per day.

A new f2p player today would have access to Prophet Cookie, Snow Globe, King Choco, lv.50, and lv.60 treasures and the daily login giving him an average potential of (.6+.6+.6+1+1.5+1) '''5.3 crystals per login per day. '''(with a minimum of 1 being the daily login guarantee and a maximum of 10)

A veteran f2p player would have an additional access to Certificate and 4 layer cake giving an additional (.55+.8) 1.35 crystals per login netting a grand total of 6.85 crystals per login per day. (.55 is avg between .4 and .7)

NOTE, this is not a realistic expectation of a free-2-play crystal engine because players have access to an enormous amount of crystals from one time sources and coupons, giving plenty of opportunities to obtain more crystal generating treasures from the store. It is not uncommon to see free-2-play players having a 10+ crystal engine only weeks into the game.

Tips from veterans
Save all crystals and coupons gained from game rewards, crystal generating treasures, events, etc. until you have a nice stack of 551+ crystals or more (every addition of 108 crystals). This shouldn't be very difficult due to large crystal rewards from season updates and events. Then go on a shopping spree and purchase as many Supreme Treasure Chest specials (6+1) to increase the potential of your crystal engine.

Crystal checkpoints for buying multiple Supreme Treasure Chest specials:

1x 119

2x 119 + (1*108)= 227

3x 119 + (2*108) = 335

Nx 119 + ((N-1)108)

When do you stop building your engine?

Never really, but do feel free to spend crystals when needed

such as on new pets (when you have fully upgraded all your existing ones, this guarantees your next pet a different one)

on inventory spaces aka Treasure Cabinet

as well as paying that 5 crystal to help you get a better high score

or spending 99 crystals for a chance at a blessed evolved treasure!

It is not recommended to spend crystals to upgrade treasures especially from +8 to +9, but if you're running into a bad streak of luck, feel free to save time and frustrating from farming coins.

Remember there's no exact formula for how to do things in Cookie Run or in life. Just follow your intuition and HAVE FUN!