Unlocks according to the main characterâ€™s level.
Pass the previous stage to unlock the next stage.
Stronghold: A stronghold has about 15 stages. Strongholds will be unlocked when the main character levels up by 10 levels each time.
In each stage, there will be 1-3 waves of monsters and you may encounter bosses as well.
After defeating each wave of monsters, players will receive EXP, Silver, S Ability and Material (chance to receive) rewards.
After passing a stage, players will receive Chest, EXP, Silver, Activity and Coupon rewards.
Upon completing a stage, players will be able to choose and receive one of three chests.
The completed stage can be challenged automatically.