Informations:
You need one rift key to enter the rift.
You can enter to rift place with 1-4 party members. First you have to kill all monsters in rift place. Second you have to kill Boss.

Rift Name
Key
Level
 Reward
Ninja Pirates:
150
100%
10%
10%
5%
5%
5%
5%
5%
Ruins:
500
100%
10%
10%
5%
5%
5%
5%
5%
Forest:
600
100%
10%
10%
5%
5%
5%
5%
5%
Castle:
700
100%
10%
10%
5%
5%
5%
5%
5%
Cathedral:
800
100%
15%
15%
15%
15%
10%
10%
10%