Co-op is a multiplayer game mode in Dragalia Lost where players can create rooms and invite up to three other players to play alongside. Co-op is unlocked after clearing the Main Campaign Ch. 2 / 2-1: The Sylvan Archer.
Creating a Room[ | ]
From the Home menu, players can select the Join Co-op button to go into Co-op, select the quest, and create the Co-op room. Creating the Co-op room will then give the player the Room ID which can then be shared with others to join the room.
Finding a Room[ | ]
Players can join other people's co-op rooms by entering a Room ID, or selecting the quest of choice and looking for co-op rooms.
Co-op Social Rewards[ | ]
Upon successful completion of a co-op quest, if that co-op quest was played with another player for the first time, then a reward of 50 
龙辉晶. This reward can be received for the first 50 people met for a total of 2,500 龙辉晶.
Co-op Play Restrictions[ | ]
A player can be barred from participating in co-op for 60 minutes if:
- 10 or more quests are played within a 15-minute time period
- Giving up a quest during co-op gameplay
- Dropping connection during co-op gameplay