At this stage, the most efficient way to level up is doing quests. There are plentiful ordinary quests for you to level up from level 11 to 20.
1. Do Daily Quest
You can enter "Ownerless Land" by NPC Zaogao in [Snow City] / NPC Wanton in [Azure City]. Every day there are four daily quests in "Ownerless Land".
Ownerless Land
Doing Daily Quest
2. Start to Challenge Instance!
When you reach level 15, you can go to the first instance "Paradise Valley" which is not too difficult to break through. BOSS hide in instance will offer better quality drops!
Tip: To make good use of Instance Team System; it’s convenient for you to find an appropriate team to wipe out instances.
Paradise Valley
BOSS: Primary Robot
BOSS:Ketchin
BOSS:Millennial Enchantress
3. Discover Runes & Forge Force Sprite
When you are between level 11 and 20, your Force Sprite may level up to level 10 or above. You may lucky to come across treasure - Rune Pieces in the wild, pick them up and collect enough to exchange an unbroken Rune from NPC Rune Goddess in [Snow City / Azure City].
To socket Rune into Force Sprite Slate, it can increase Force Sprite’s power in a good degree.
Tip: Exchange for Rune with AOE attribute is firstly recommended. Force Sprite socketed with AOE type Rune has strong power to defeat monsters.
Socket Runes into Force Sprite Slate
Force Sprite is releasing AOE attack
4. Make Powerful Force Crystals
With the help of NPC Force Crystal Child, you can converse your Force to form Force Crystals. Force Crystal can be socketed into equipments and make you get great progress at earlier stage.