Breeding

Breeding is the act of acquiring a new Vehicle Box by taking two Vehicles as Parents.

To breed, you must first select two of your Vehicles as Parents. You cannot select the following Vehicles as Parents:

• A Vehicle that has been selected as a Parent for a Breeding within the last 72 hours

• A Vehicle that has been minted less than 72 hours ago

• A Vehicle whose level is below the eligible level for Breeding

• A Vehicle in the process of leveling up

• A Vehicle listed for sale on Market

You need XPER, PER, and Breeding Key items that match the Grades and Types of the Parent Vehicles.

Example 1: when you use a Normal Sedan Vehicle and an Elite Off-road Vehicle as Parents for Breeding, you need a Normal Sedan Key and Elite Off-road Key.

Example 2: when you use a Rare Sedan Vehicle and another Rare Sedan as Parents, you need two Rare Sedan Keys.

When the Breeding is complete, you get a Vehicle Box (and you do not lose the Parent Vehicles). The Vehicle Box has the following properties:

Property	Description
Grade	Vehicle Boxes are divided into five Grades: Normal, Rare, Elite, Epic, and Ultimate. The higher the Grades of Parent Vehicles, the more likely it is that a higher Grade Box will appear.
Polished	Some Vehicle Boxes are prefixed with Polished. The higher the Parent Vehicle’s Breed Count (the cumulative number of times it has been used as a Parent prior to this Breeding), the more likely the Box has the Polished property.

When you open a Vehicle Box, you get a new Vehicle. You don’t know information about the Vehicle until you open the Box. Newly minted Vehicles can inherit the properties of their Parents with a certain probability.

Property	Description
Grade	Determined by the Grade and Polished properties of the Vehicle Box. If the Box is of a higher Grade and Polished, it is more likely that a higher Grade Vehicle will appear.
Type	The new Vehicle will probably follow one of its Parent’s Vehicle Types, but it is not guaranteed, and sometimes a Vehicle of a different Type may appear. Sports Vehicles are set to appear less likely than other Types due to their high performance and rarity.
Gem Socket color	The new Vehicle’s Gem Socket colors would likely be selected from those of the Parents with a high chance, but it is not guaranteed, and some Sockets may have a different color.

The breeding cost is determined by 1) the base cost and 2) the additional cost based on the number of breeding attempts.

1. Base Cost The cost is different for each parent depending on their grade during breeding.

Grade	XPER	PER
Normal	600	300
Rare	1,000	500
Elite	1,600	800
Epic	4,400	2,200

• If the grades of the parent cars are Epic and Normal, respectively, the total base cost is 5,000 XPER and 2,500 PER.

2. Additional Cost Based on the Number of Breeding Attempts An additional cost is applied based on the total number of breeding attempts of both parents.

Total number	XPER	PER
1	100	50
2	200	100
3	300	150
4	400	200
5	500	250
6	600	300
7	700	350
8	900	450
9	1,100	550
10	1,300	650
11	1,600	800
12	1,900	950
13	2,300	1,150
14	2,700	1,350