Honkai Star Rail does not feature multiplayer or a coop mode but it does feature a support system that allows you to borrow characters.
Is Honkai Star Rail Multiplayer?
No, Honkai Star Rail does not feature multiplayer or co-op modes. Although you can add friends within Honkai Star Rail, you can not play cooperatively in the game at the current time.
However, there is a Support system in Honkai Star Rail similar to other JRPG titles that allows you to borrow a character from friends or other players to help you complete challenges such as Echo of War, Cavern of Corrosion and Stagnant Shadow.
Does Honkai Star Rail have PvP?
No, Honkai Star Rail does not have a PvP mode and is a pure PvE title. Although there is always a chance of PvP content in the future, HoYoverse so far have never confirmed any plan to add PvP.
How to use a support character
The Support system allows you to temporarily use a character you don't have unlocked or who is significantly higher level than your own version. You may only borrow 1 support character, and there is no limit on how many times you can borrow them.
Step-by-Step: How to use Support Characters in Honkai Star Rail
- Start any Trailblaze Power activity (such as Echo of War or Calyx)
- Click the "Support" icon on the right of your fourth party member slot
- Select a character you wish to borrow and click "Add"
- Start Challenge
You can use a support character for any game mode or challenge that requires Trailblaze Power.
Activities that use Trailblaze Power:
- Calyx
- Echo of War
- Stagnant Shadow
- Cavern of Corrosion
Rewards
If a player completes a battle with your Support Character they will receive a reward in Credits up to 5 times a day. The reward will accumulate over time and you can earn up to 60,000 Credits from doing so.
Honkai Star Rail: How to set up a support character
- Open your in-game smart phone/character menu
- Click on the three dots next to your name
- Click on "Pathfinder profile"
- Click on "Support Character"
- Choose a character or replace an existing support character
- Exit the Menu